1. Why Mazda Owners Benefit from Permanent Ceramic Protection

Mazda occupies a unique position in the automotive market. The brand has built its reputation on engineering distinctiveness - the company that prioritized rotary engines for decades, pioneered HCCI compression ignition with Skyactiv-X, returned to inline-six architecture in the modern luxury segment with the CX-90, and continues to produce the world's best-selling roadster (the MX-5 Miata) in its fourth generation. Mazda owners self-select for engineering interest at a higher rate than most mainstream brand customers.

The Mazda owner community spans several distinct demographics:

• The Miata community - one of the most engaged and long-term-oriented enthusiast bases in automotive culture. The MX-5 has been in continuous production since 1989 across NA, NB, NC, and ND generations, and it's not unusual to find original-owner Miatas with 200,000+ miles still running strong.
• Mainstream Mazda owners (CX-5, CX-30, CX-50, Mazda3) - typically buyers who appreciate Mazda's "premium for the price" positioning and Kodo design language. The CX-5 alone has sold over 1.6 million units in the US since 2012.
• CX-70 and CX-90 family SUV owners - the newest demographic, often cross-shopping against BMW X3/X5, Audi Q5/Q7, Acura MDX, and Genesis GV70/GV80. The 3.3L inline-six positions Mazda as a near-luxury brand competitor.
• Mazdaspeed enthusiasts - owners of the Mazdaspeed3 (2007-2013), Mazdaspeed6 (2006-2007), Mazdaspeed Protege, and other turbocharged Mazda performance vehicles. Active aftermarket community with companies like CorkSport, Cobb Tuning, and dedicated forums.
• RX-8 rotary owners - dedicated enthusiasts of the Renesis rotary engine. A smaller but extremely engaged community that maintains rotary engines with specialized knowledge.
• Skyactiv-X owners (international markets) - early adopters of the world's first commercially-available HCCI gasoline engine.

That ownership philosophy aligns directly with Cerma's value proposition: a one-time investment that protects the engine permanently. The Mazda owner who chose the brand specifically for its engineering distinctiveness understands engine maintenance as part of the long-term ownership relationship. Cerma fits naturally into that mindset.

Mazda vehicles also have specific engineering characteristics that make Cerma especially relevant:

• Skyactiv-G engines run high compression ratios. The Skyactiv-G 2.5L NA uses 13:1 compression in the US (14:1 in international markets), and the Skyactiv-X uses 16:1 - significantly higher than most competitors. Higher compression means higher cylinder pressures and more aggressive piston/cylinder wall contact, exactly the wear surfaces Cerma's bonded ceramic protects best.
• The Skyactiv-G 2.5L Turbo is a pure direct-injection engine. Pure DI engines have specific cylinder wall wear patterns, fuel impingement during cold starts, and (as covered in Section 4) carbon buildup concerns. Cerma's ceramic addresses the cylinder wall friction directly.
• The new 3.3L turbocharged inline-six is sophisticated. Hybrid integration (M Hybrid Boost), wet-clutch transmission (8EC-AT Skyactiv-Drive), longitudinal layout - all engineered for the higher-end family SUV segment where engine longevity matters significantly.
• Many Mazdas are kept long-term. The MX-5 Miata community is famous for high-mileage ownership. The CX-5 has built a strong reputation for reliability across its production run. Cerma applied early protects the engine across decades of ownership.
• 4-2-1 exhaust manifolds and cooled EGR. The Skyactiv-G family uses a unique 4-2-1 exhaust manifold to improve scavenging and a cooled exhaust gas recirculation system - both designed to allow the high compression ratio while preventing knock. Cerma's friction reduction at the cylinder walls supports the engineering goals of the high-compression design.

Cerma STM-3 is fundamentally different from any oil or additive. The active ingredient is Nano Silicon Carbide (SiC) - actual ceramic particles that bond mechanically to engine metal surfaces over the first 3,000 to 5,000 miles of driving. Once bonded, the ceramic creates a sacrificial wear layer between metal-on-metal contact points. Friction drops by up to 90 percent. Wear slows dramatically. And because the bond is mechanical, the ceramic survives every oil change.

For more on the underlying chemistry, see our complete guide to Nano Silicon Carbide. To understand the EPA ETV certification that backs Cerma's performance claims, see our guide to EPA Environmental Technology Verification.

2. Which Cerma Product for Your Mazda Engine

Whether you're treating a 2026 CX-90 Turbo S Premium Plus with the 3.3L inline-six or a 2003 RX-8 with the Renesis rotary, the Cerma application is the same: 2oz gas treatment ($105.60), one bottle, one-time application.

Current 2026 Mazda gas engines:

Historical Mazda engines (still on the road):

3. Special Note: Skyactiv-G 2.5L NA - The Volume Engine

The Skyactiv-G 2.5L naturally aspirated engine (engine code PY-VPS) is the heart of the volume Mazda lineup. Introduced in the 2013 Mazda6, the engine has powered millions of Mazda vehicles across the CX-5 (since 2013), CX-30 (since 2020), CX-50 (since 2022), Mazda3 (since 2014), older CX-9, older Mazda6, and now the new third-generation 2026 CX-5.

Skyactiv-G 2.5L NA specifications

The Skyactiv-G 2.5L NA produces:

• 187 hp at 6,000 RPM (US 13:1 compression) through 2022
• 191 hp from 2023+ with revised tuning
• 252 N-m / 186 lb-ft of torque at 4,000 RPM
• 2,488 cc displacement with 89.0 mm bore and 100.0 mm stroke
• Cylinder deactivation since 2018 for improved fuel economy at light load

The engine uses gasoline direct injection, dual overhead camshafts, variable valve timing, all-aluminum construction, and meets US ULEV emission standards. The 13:1 compression ratio (versus 14:1 in international markets) is calibrated to allow regular gasoline use in the US market - the lower compression reduces torque and fuel economy by approximately 3-5 percent compared to the international version.

Why Cerma works particularly well on Skyactiv-G 2.5L NA

• 13:1 compression ratio. Significantly higher than most competitors (Toyota 12:1, Honda 12:1, Hyundai 11.5:1 typical). Higher compression means higher cylinder pressures and more aggressive piston/cylinder wall contact - exactly the wear surfaces Cerma's bonded ceramic protects best.
• Cylinder deactivation system (since 2018). The system shuts off two of the four cylinders during light-load operation, with frequent transitions between 4-cylinder and 2-cylinder modes. Each transition involves valve actuation changes that benefit from Cerma's friction reduction at the valvetrain.
• 4-2-1 exhaust manifold. The unique exhaust manifold design improves scavenging and allows the high compression ratio while preventing knock. The exhaust temperature management benefits indirectly from reduced friction-generated heat in the engine.
• High-mileage applications. The CX-5 in particular has built a strong long-term reliability reputation, with many examples crossing 200,000+ miles. Cerma applied at any oil change extends that durability potential with permanent friction reduction.
• e-Skyactiv PHEV applications. The Skyactiv-G 2.5L is also used in plug-in hybrid form (CX-70 PHEV, CX-90 PHEV) where it's paired with a 129 kW electric motor and 17.8 kWh battery for combined 323 hp output. Cerma works in PHEV applications - it's added to gas engine oil only, leaving the hybrid components (battery, motor, inverter) sealed and unaffected.

4. Honest Disclosure: Skyactiv-G 2.5L Turbo Carbon Buildup

This is one of the most important sections in this guide because intake valve carbon buildup is one of the most-discussed Skyactiv-G 2.5L Turbo reliability concerns. If you own or are considering a CX-50 Turbo, CX-30 Turbo, Mazda3 Turbo, older CX-5 Turbo, or older CX-9 with the 2.5L Turbo engine, this section is essential reading.

Why pure direct-injection engines develop carbon buildup

The Skyactiv-G 2.5L Turbo (engine code PY-VPTS) uses pure gasoline direct injection - fuel is injected directly into the combustion chamber rather than into the intake port. This is fundamentally different from port-injected engines (where fuel sprays through the intake valves) and from dual-injection engines like Toyota's D-4S or some Hyundai/Kia Smartstream variants (which use both port and direct injection together).

On pure DI engines, fuel never washes the back of the intake valves. Over time, deposits accumulate on the intake valves from two main sources:

• PCV (Positive Crankcase Ventilation) oil vapor. Engine blow-by gases - which contain oil vapor - are recirculated through the PCV system back into the intake. The oil vapor coats the back of the intake valves.
• EGR (Exhaust Gas Recirculation) gases. Carbon-laden exhaust gases are recirculated for emissions control, depositing carbon on intake valves and intake ports.

The deposits build up gradually over time. Typical Skyactiv-G 2.5L Turbo engines show meaningful carbon buildup at 60,000-100,000 miles, with symptoms emerging more gradually:

• Reduced engine response, particularly at low RPM
• Mild throttle hesitation
• Reduced fuel economy
• In severe cases: misfire codes, rough idle, check engine lights for cylinder-specific issues

Cerma cannot fix existing carbon buildup

Let's be direct about what Cerma can and cannot do:

• Cerma is added to engine oil and bonds to engine metal contact surfaces. The intake valves see oil vapor (PCV) and exhaust gas (EGR), but they're not in the engine oil flow path - Cerma cannot reach the intake valves.
• Cerma cannot dissolve existing carbon deposits. Carbon buildup is a separate maintenance concern from friction wear.
• Cerma is not a replacement for periodic intake cleaning on Skyactiv-G 2.5L Turbo applications.

The proven solutions for Skyactiv-G 2.5L Turbo carbon buildup

• Walnut shell blasting - the gold standard cleaning method. A specialty service that uses crushed walnut shells under pressure to physically remove carbon deposits from intake valves and ports without damaging the metal. Typical cost $400-$800 every 60,000-100,000 miles depending on driving conditions.
• CRC GDI Intake Valve Cleaner - aerosol cleaner applied through the intake during operation. Less effective than walnut shell blasting for severe deposits, but useful as preventive maintenance every 10,000-15,000 miles.
• BG 44K type fuel system cleaners - won't reach the intake valves on pure DI engines (they go through the fuel system, but DI fuel doesn't touch the intake valves) but can help with fuel injector and combustion chamber cleanliness.
• Catch cans - aftermarket oil catch cans intercept PCV oil vapor before it enters the intake, dramatically reducing carbon buildup over time. Popular preventive solution in the Mazdaspeed and tuner communities.

Where Cerma DOES help Skyactiv-G 2.5L Turbo owners

What Cerma DOES do for Skyactiv-G 2.5L Turbo owners is provide permanent friction reduction at the cylinder walls, bearings, cam lobes, valvetrain, and turbo bearings - exactly the wear surfaces that benefit from ceramic protection on a high-output turbocharged engine. The 250 hp / 320 lb-ft output (on premium fuel) puts significant load on every wear surface, and the variable-geometry turbocharger spinning at 100,000+ RPM benefits substantially from permanent bearing protection.

The proven workflow for Skyactiv-G 2.5L Turbo owners: (1) Apply Cerma at any oil change for permanent friction protection. (2) Plan walnut shell blasting at 60,000-100,000 miles for intake valve carbon cleanup. (3) Consider an oil catch can as preventive maintenance. This combination addresses both the friction wear concerns and the DI-specific carbon buildup concern.

5. Special Note: Skyactiv-G 3.3L Turbo Inline-Six (CX-70 / CX-90)

The Skyactiv-G 3.3L turbocharged inline-six (engine code H3T, marketed as e-Skyactiv G with M Hybrid Boost mild-hybrid integration) was introduced in the 2023 Mazda CX-90 and represents Mazda's first inline-six engine since the 1990s. The CX-70 (introduced 2024) shares the same engine. The decision to develop a new inline-six engine - while most of the industry was moving away from larger gas engines - is one of the boldest engineering choices in recent automotive history.

Why an inline-six?

Inline-six engines have natural advantages over V6 designs:

• Inherently smoother operation. Inline-six engines are perfectly balanced primary and secondary - they don't need the balance shafts that some V6 engines require for refinement.
• Simpler manifold design. Single intake, single exhaust manifold (versus two of each on a V6) for more efficient gas flow.
• Better thermal characteristics. The cylinders are arranged in a single straight line with even cooling around all six.
• Premium-segment positioning. Inline-six is associated with luxury brands like BMW, Jaguar, and historically Mercedes - the architecture conveys a near-luxury character that Mazda has been positioning toward.

Skyactiv-G 3.3L Turbo specifications

The H3T 3.3L turbocharged inline-six produces:

• 3,283 cc displacement with 86.0 mm bore and 94.2 mm stroke
• 12:1 compression ratio
• Lower-output (Turbo, non-S trims): 280 hp / 332 lb-ft
• Higher-output (Turbo S, premium fuel): 340 hp / 369 lb-ft
• Higher-output (Turbo S, regular fuel): 319 hp
• Longitudinal layout (front-engine, rear-biased AWD - similar to BMW)
• M Hybrid Boost mild-hybrid system with 0.33 kWh battery and integrated starter-generator adding 16.6 hp / 113 lb-ft

The Skyactiv-Drive 8EC-AT transmission

The CX-70 and CX-90 use Mazda's 8EC-AT 8-speed automatic transmission, which uses a single wet clutch in place of a conventional torque converter. This design provides:

• More direct power transfer (less slip than torque converters)
• Increased front passenger footwell space
• Better fuel economy through reduced parasitic loss
• The "Mazda driving feel" - more direct response than typical SUV automatics

The wet clutch contact surfaces are ideal candidates for Cerma's transmission treatment as a cross-sell - permanent ceramic protection at exactly the wear surface that defines the transmission's character.

Why Cerma is particularly valuable on the 3.3L inline-six

• Turbocharger bearing protection. The 3.3L inline-six runs significant boost pressures, and the turbo bearings spinning at 100,000+ RPM benefit substantially from Cerma's bonded ceramic.
• Six-cylinder bearing surfaces. Six rod bearings, seven main bearings, plus the camshaft journals - more wear surfaces than a four-cylinder engine, all of which benefit from Cerma's friction reduction.
• M Hybrid Boost integration. The integrated starter-generator engages frequently for engine restarts (start-stop), boost assist, and regenerative braking. Each restart event is a brief moment of low oil pressure when bearing wear is concentrated. Cerma's mechanical bond provides protection from the very first revolution after restart.
• Luxury-segment ownership horizons. CX-70 and CX-90 buyers tend to be longer-term oriented than typical mainstream SUV buyers, often planning 8-12+ year ownership. The one-time $105.60 Cerma application provides protection across the entire ownership horizon.
• Towing applications. CX-70 and CX-90 can tow up to 5,000 lbs (3.3 Turbo S models) - Cerma's bonded ceramic provides sustained protection during towing operation.

For 2026 Mazda CX-90 owners specifically, the engine is one of the most distinctive in the entire mainstream SUV segment. The combination of inline-six smoothness, mild-hybrid efficiency, wet-clutch transmission directness, and Mazda's signature handling character creates a vehicle that competes with luxury brands at lower price points. Cerma's permanent ceramic protection complements that engineering investment with permanent friction reduction across the engine's entire operating life.

6. Special Note: MX-5 Miata - The Long-Term Ownership Platform

The Mazda MX-5 Miata is one of the most beloved sports cars ever produced. In continuous production since 1989 across four generations (NA 1990-1997, NB 1998-2005, NC 2006-2015, ND 2016-present), the Miata holds the record as the world's best-selling roadster - over 1.1 million units sold globally. The Miata community is one of the most engaged and long-term-oriented enthusiast bases in automotive culture.

The current ND Miata (2016-present)

The current ND Miata uses the Skyactiv-G 2.0L (engine code PE-VPS) producing 181 hp at 7,000 RPM with a 7,500 RPM redline. The 13:1 compression ratio matches the Skyactiv-G 2.5L family, and the engine pairs with a 6-speed manual transmission (or available 6-speed automatic). The car weighs approximately 2,400 lbs - extraordinarily light by modern standards - which means engine longevity matters more than absolute power output for most Miata enthusiasts.

For 2026, Mazda offers the MX-5 Miata in soft-top and RF (retractable hardtop) variants, with manual transmission models achieving EPA 26 city / 34 highway / 29 combined MPG.

Miata generations and engine families

• NA Miata (1990-1997) - 1.6L B6 engine (1990-1993, 116 hp), 1.8L BP engine (1994-1997, 128-133 hp). The original "Mk.1" Miata.
• NB Miata (1998-2005) - 1.8L BP-VE with VVT (2001+), 142-146 hp. The "facelift" generation with refined aerodynamics and engine.
• NC Miata (2006-2015) - 2.0L MZR LF-VE engine, 158-167 hp depending on year. The largest and heaviest Miata.
• ND Miata (2016-present) - Skyactiv-G 2.0L PE-VPS, 155 hp originally, raised to 181 hp from 2019+. Returns to the lightweight philosophy of the NA.

Why Cerma is particularly valuable on Miatas

• The Miata long-term ownership culture. 200,000+ mile Miatas are not unusual - they're celebrated. Many Miatas have been owned by the same person for 20+ years. Cerma's permanent ceramic protection aligns directly with that ownership philosophy.
• Track day and autocross participation. The Miata is one of the most popular track day and autocross cars in the US. SCCA Solo events, NASA HPDE programs, and various track day organizations see significant Miata participation. Track use accelerates wear at every contact surface.
• High-RPM operation. The current Skyactiv-G 2.0L Miata redlines at 7,500 RPM with peak power at 7,000 RPM. The valvetrain operates at speeds that benefit substantially from Cerma's bonded ceramic at the cam lobes and valvetrain components.
• Spirited driving is the point. Miata owners drive their cars enthusiastically as a matter of philosophy. Cerma's friction reduction provides protection during exactly the kind of driving Miata owners actually do.
• Modification-friendly platform. The Miata aftermarket community is one of the strongest in automotive enthusiasm - companies like Flyin' Miata, 949 Racing, V8 Roadsters, BBR-Cosworth, Goodwin Racing, and many others produce parts ranging from suspension upgrades to supercharger kits to LS V8 swaps. Cerma is compatible with all of these modifications since it's added to engine oil and works at the existing wear surfaces.

For the older Miata generations (NA, NB, NC), Cerma is sound preventive maintenance for engines that have already crossed 100,000-200,000+ miles in many cases. The 2oz Cerma gas treatment applies to all Miata generations - same product whether you have a 1990 1.6L NA, a 2005 1.8L NB, a 2010 NC 2.0L, or a 2026 ND Skyactiv-G 2.0L.

7. Special Note: Skyactiv-X HCCI - The World's First Commercial Compression-Ignition Gasoline Engine

Skyactiv-X is one of the most innovative production engines ever made. Where conventional gasoline engines rely on spark plugs to initiate combustion, the Skyactiv-X uses a fundamentally different combustion mode: Homogeneous Charge Compression Ignition (HCCI), or what Mazda calls Spark Controlled Compression Ignition (SPCCI).

How Skyactiv-X works

In a conventional spark-ignition engine, the spark plug ignites the air-fuel mixture, and a flame front propagates outward from the spark. In a diesel engine, compression alone ignites the fuel - no spark plug is used. Skyactiv-X combines both approaches:

1. The engine compresses the lean air-fuel mixture to a 16:1 compression ratio (compared to 13-14:1 on conventional Skyactiv-G).
2. A spark plug ignites a small amount of fuel near the spark plug, creating a controlled flame.
3. The pressure wave from this small spark-ignited combustion compresses the rest of the mixture beyond its auto-ignition threshold.
4. The remaining mixture spontaneously ignites throughout the combustion chamber - similar to how a diesel engine ignites - resulting in faster, more complete, more efficient combustion.

The result is meaningful improvements in:

• Thermal efficiency (more energy from each unit of fuel)
• Fuel economy (typically 5-15% better than equivalent Skyactiv-G)
• Emissions (lower NOx and CO2)
• Throttle response at low RPM (the lean mixture allows immediate throttle response without the lag of conventional throttling)

Skyactiv-X market availability

The Skyactiv-X is primarily available in international markets:

• Europe: Mazda3 and CX-30 with Skyactiv-X have been on sale since 2019
• Japan: Mazda3 and CX-30 with Skyactiv-X available domestically
• Select Asian markets: Available in some Australian and Asian market vehicles
• United States: Skyactiv-X has been mostly discontinued in the US market - Mazda has chosen to focus on Skyactiv-G and the upcoming Skyactiv-Z hybrid system for the US lineup

Cerma compatibility with Skyactiv-X

Cerma STM-3 is fully compatible with Skyactiv-X engines. Cerma's Nano Silicon Carbide ceramic bonds at the same wear surfaces (cylinder walls, bearings, cam lobes, valvetrain) regardless of combustion mode - whether the engine uses spark ignition, compression ignition, or the combined SPCCI approach of Skyactiv-X.

The 16:1 compression ratio of Skyactiv-X creates higher cylinder pressures than conventional engines, which means more aggressive piston/cylinder wall contact - exactly the wear surface where Cerma's bonded ceramic provides the most benefit. The sophisticated combustion control electronics that manage the SPCCI process are unaffected by Cerma since the treatment works at the metal contact surfaces, not at the combustion or sensor systems.

For Mazda owners with imported Skyactiv-X engines, or for international readers, use the same 2oz Cerma gas engine treatment ($105.60). The application process is identical to any conventional Skyactiv-G application.

8. Special Note: Renesis Rotary Heritage (RX-8) and Rotary-Specific Considerations

The Mazda RX-8 (2003-2012) used the Renesis 13B-MSP rotary engine - the last production rotary engine in any Mazda US-market vehicle. The Renesis is a unique engine architecture with specific maintenance considerations that deserve dedicated discussion.

Renesis 13B-MSP specifications

The Renesis is a twin-rotor Wankel rotary engine displacing 1.3L total (two 654cc rotor chambers). It produces:

• 197 hp (early production) standard tune
• 232 hp (Type S, R3) high-output variants
• 238 hp (international markets) in some applications
• 9,000 RPM redline - one of the highest-revving production engines ever
• Hot/cold start at 24-26 mpg combined in real-world use (lower than equivalent piston engines due to the rotary architecture's thermal characteristics)

Rotary-specific oil consumption

Critical disclosure for rotary owners: Rotary engines are designed to consume engine oil. Unlike piston engines where oil consumption is a sign of wear, rotary engines deliberately inject metered oil into the combustion chambers to lubricate the apex seals and rotor housings during operation. This is normal, expected, and necessary for rotary operation - typical Renesis oil consumption is 0.5-1.0 quart per 1,000-2,000 miles.

This oil consumption design has specific implications for Cerma application:

• Cerma is added to engine oil the same way as any other application
• The bonded ceramic on rotor seals and housings provides friction protection at the rotary-specific wear surfaces
• Oil consumption during operation means new oil (without Cerma) is added periodically, but the bonded ceramic from the original Cerma application stays in place at the metal contact surfaces
• Owners can apply Cerma with each oil change if they prefer continuous fresh ceramic application, though this is not strictly necessary - the bonded ceramic from the first application provides protection long-term

Apex seal wear - the rotary durability concern

The most-discussed rotary reliability concern is apex seal wear. The apex seals are the strips at the tips of each rotor that maintain combustion chamber separation. Over time and especially under high-load operation, apex seals wear, leading to:

• Loss of compression in one or both rotors
• Rough idle and starting difficulty when cold
• Reduced power output
• Eventually, complete rotor failure requiring engine rebuild ($4,000-$8,000+)

Apex seal wear is a function of mechanical contact at the rotor tip - exactly the wear surface where Cerma's bonded ceramic can provide friction reduction. Cerma cannot reverse existing apex seal wear, but applied early to a healthy Renesis engine, Cerma provides preventive friction reduction at the apex seal contact surfaces.

For rotary enthusiasts considering Cerma

The RX-8 and RX-7 communities are highly knowledgeable about rotary-specific maintenance. Many rotary enthusiasts use specialized rotary oils (Idemitsu Apex-i, Royal Purple Synfilm, Redline rotary-specific oil) and pre-mix oil with fuel for additional apex seal lubrication. Cerma is fully compatible with all of these maintenance approaches and adds permanent ceramic friction protection without altering the rotary-specific oil chemistry.

For rotary applications, use the same 2oz Cerma gas engine treatment ($105.60). The treatment is added to the engine oil during a normal oil change.

9. Special Note: Mazdaspeed Performance Lineage

The Mazdaspeed performance brand produced some of the most engaging Mazda vehicles ever made. Active from approximately 2003 through 2013, the Mazdaspeed lineup included the Mazdaspeed Protege, Mazdaspeed3 (2007-2013), Mazdaspeed6 (2006-2007), and Mazdaspeed MX-5 Miata (2004-2005). The Mazdaspeed3 in particular built one of the most engaged tuner communities in the Mazda enthusiast space.

MZR-DISI 2.3L Turbo (Mazdaspeed3 / Mazdaspeed6)

The MZR-DISI 2.3L turbocharged engine used in the Mazdaspeed3 (2007-2013) and Mazdaspeed6 (2006-2007) was groundbreaking - one of the earliest mass-production turbocharged direct-injection gasoline engines. Specifications:

• 2.3L displacement
• 263 hp / 280 lb-ft (Mazdaspeed6) - 6-speed manual or available 6-speed automatic
• 263 hp / 280 lb-ft (early Mazdaspeed3) - 6-speed manual only
• 274 hp / 280 lb-ft (later Mazdaspeed3 with revised tune)
• Direct injection (DISI = Direct Injection Spark Ignition) - one of the earliest mass-production DI gas engines
• Mitsubishi K04 turbocharger on Mazdaspeed3, larger turbo on Mazdaspeed6

The Mazdaspeed3 tuner community

The Mazdaspeed3 has built one of the most engaged tuner communities in the Mazda enthusiast space:

• CorkSport - the largest Mazdaspeed parts manufacturer, complete catalog of upgrades
• Cobb Tuning - Accessport tunes for Mazdaspeed3 (Stage 1, Stage 2, Stage 2+)
• AccessPort and Versatune - tuning solutions
• Stage 1 (intake + tune) - typically 290-310 hp
• Stage 2 (intake + intercooler + downpipe + tune) - typically 320-360 hp
• Stage 3+ (turbo upgrade builds) - 400-500+ wheel hp

Why Cerma is particularly valuable on Mazdaspeed engines

• Aggressive driving usage. Mazdaspeed3 owners drive their cars enthusiastically. The community has adopted the cars as serious performance vehicles, often modified well beyond stock output.
• Direct injection carbon buildup. The DISI engine has the same carbon buildup concern as the modern Skyactiv-G 2.5L Turbo - same disclosure as Section 4.
• Turbocharger bearing protection. The Mitsubishi K04 turbo (and aftermarket replacements) spin at high RPM continuously. Cerma's bonded ceramic protects bearings throughout the engine's life.
• Long-term ownership. Mazdaspeed3s and Mazdaspeed6s are often kept long-term as enthusiast cars with high mileage. Cerma's permanent ceramic protection supports the long-term ownership horizons typical for these cars.

For Mazdaspeed owners, Cerma is sound investment maintenance. Use the same 2oz Cerma gas engine treatment ($105.60). The treatment is fully compatible with all aftermarket tunes (Cobb, CorkSport, Versatune) since Cerma works at the metal contact surfaces, not at the calibration or sensor systems.

10. Mazda Oil Specifications

Mazda uses standard SAE viscosity grades with specific requirements for the Skyactiv engine family. Mazda doesn't use proprietary specifications like BMW's LL-01 or Mercedes's MB 229 system, which makes oil compatibility straightforward for most Mazda owners.

Common Mazda oil weights:

• 0W-20 - the workhorse weight for most current Skyactiv-G engines including 2026 CX-5, CX-30, CX-50, Mazda3, MX-5 Miata, CX-70, CX-90. Verify your owner's manual.
• 5W-30 - some Skyactiv-G 2.5L Turbo applications, older Mazda6, older CX-9, older Mazdaspeed3 / Mazdaspeed6 (verify owner's manual - some Mazdaspeed applications called for 5W-30)
• 5W-40 - some heavily-modified Mazdaspeed applications (running aggressive tunes)
• 10W-30 / 10W-40 - specific to Renesis rotary applications (verify owner's manual - some markets and years specified different weights)

Recommended Mazda-compatible oils that work with Cerma:

• Mazda Genuine Motor Oil (Mazda branded) - dealer-stocked oil meeting Mazda specifications
• Mobil 1 Extended Performance 0W-20 - widely available, popular Mazda choice
• Castrol Edge 0W-20 - widely available
• Pennzoil Platinum 0W-20 - widely available
• Liqui Moly Special Tec AA 0W-20 - for owners who want a premium European oil
• Valvoline Advanced Full Synthetic 0W-20 - widely available
• Amsoil Signature Series 0W-20 - for owners who want extended drain intervals
• Idemitsu Apex-i - rotary-specific oil for Renesis applications

Cerma's compatibility statement

Cerma STM-3 is fully compatible with all of these oils and all Mazda oil specifications. Cerma does not alter oil viscosity, base oil chemistry, additive package composition, or any specification compliance. The Nano Silicon Carbide ceramic particles bond to engine metal surfaces - they do not interact with the oil's chemical properties.

If your Mazda dealer or independent specialist asks about your oil during service, the answer is: standard manufacturer-spec oil (or whatever you actually used). Cerma does not need to be disclosed - it's not part of the oil chemistry, it's bonded to your engine metal.

11. How to Install Cerma in Your Mazda

Installation is straightforward whether you DIY at home or have your Mazda serviced at the dealer or an independent specialist. Cerma can be added during any oil change.

1. Complete a normal oil change. Drain old oil, replace filter (Mazda OEM, Mahle, Mann, Wix, or any quality filter meeting Mazda specs), and add fresh oil to your specified weight - typically 0W-20 for current production Skyactiv-G applications, 5W-30 for some older applications, 10W-30 or 10W-40 for Renesis rotary (verify your owner's manual). For DIY: most Mazda four-cylinder engines hold 4-5 quarts, the new 3.3L inline-six holds approximately 6.4 quarts, the Renesis rotary holds 4 quarts plus the metered injection oil.
2. Pour the Cerma 2oz bottle into your oil fill port. One full bottle for any Mazda gas engine - inline-four, inline-six, or rotary.
3. Replace the oil cap and start the engine. No warm-up procedure required. Drive normally including spirited driving, Miata canyon runs, autocross weekends, or family road trips. The ceramic begins bonding from the first drive.
4. Drive 3,000 to 5,000 miles on the treated oil. The ceramic particles bond to engine metal during this break-in window. Skyactiv-G owners typically notice smoother idle and slightly better throttle response within the first 1,000 miles. CX-90 inline-six owners often report quieter cold-start operation. Miata owners often notice slightly more refined high-RPM operation. Mazdaspeed3 owners typically notice smoother turbo response.
5. Continue normal oil changes at Mazda's recommended intervals (typically 7,500 miles for severe service or as indicated by the oil life monitor). The bonded ceramic stays - it doesn't drain out with the oil.

For complete step-by-step installation details with photos and FAQs, see our full installation guide.

12. What to Expect: First 3,000 to 5,000 Miles

First 500 miles:

Engine sound and idle quality often smooth out within the first few hundred miles. Skyactiv-G 2.5L Turbo owners (CX-50 Turbo, CX-30 Turbo, Mazda3 Turbo) typically notice particularly smooth turbo response. CX-70 and CX-90 inline-six owners often report subtler smoothing of the already-smooth inline-six idle. MX-5 Miata owners often report slightly more refined high-RPM operation. Mazdaspeed3 owners typically notice slightly more linear boost response. Renesis rotary owners often report slightly smoother cold-start operation.

500 to 2,000 miles:

Throttle response feels more linear, particularly during transitions in and out of boost on turbocharged Mazdas. Cold-start operation feels smoother on all gas engines. CX-50 Turbo and CX-30 Turbo owners often notice slightly improved low-RPM torque delivery. CX-90 owners often report quieter operation during cruising. Miata owners often notice slightly tighter throttle response. PHEV owners (CX-70 PHEV, CX-90 PHEV) may notice smoother gas-electric transitions.

2,000 to 5,000 miles:

The ceramic bond is largely complete. Friction reduction is at full effect. Many Mazda owners report measurable fuel economy improvements during this window - Cerma's customer-reported range is 4-21%* depending on use patterns. For a daily-driver CX-5 averaging 28 mpg, even a 5% improvement adds up to meaningful annual fuel savings. For a CX-90 Turbo S averaging 23-28 mpg, the percentage improvement compounds with the larger fuel costs of the inline-six SUV.

5,000+ miles (permanent):

The ceramic matrix is fully bonded. From here on, your Mazda has the friction reduction benefit for the life of the engine. Through every future oil change. Every cold start. Every spirited drive. Every track day. Every road trip. No reapplication, no maintenance, no recurring cost. This is the maintenance approach that supports the multi-decade ownership horizons typical of dedicated Miata enthusiasts, the high-mileage CX-5 community, and Mazda owners who plan long-term relationships with their vehicles.

13. Complete Mazda Drivetrain Protection

The engine treatment handles the engine. For full Mazda protection, three additional Cerma products extend the same ceramic technology to your transmission, differentials, and motor oil.

14. Mazda Warranty Considerations

Mazda North American Operations offers a 3-year/36,000-mile new vehicle limited warranty plus a 5-year/60,000-mile powertrain warranty, with optional extended coverage available through Mazda Total Confidence and other Mazda-approved extended warranty programs.

The federal Magnuson-Moss Warranty Act protects you. Mazda North American Operations cannot void your warranty simply because you used an aftermarket engine treatment. They cannot deny a specific warranty claim unless they can prove the aftermarket product directly caused the failure they're refusing to cover.

Why Cerma is in a particularly strong warranty position:

• EPA ETV certified - independent third-party verification of performance under controlled conditions. Almost no other engine treatment carries this credential.
• Inert ceramic chemistry - Cerma doesn't change oil viscosity, additive package, or filtration. Your Mazda continues running on Mazda-spec lubrication.
• Compatible with all Mazda dealer service routines - every oil change at Mazda's recommended intervals, every dealer service visit, no changes to your routine.
• Does not interact with engine diagnostic systems - the Mazda oil monitoring systems read driving patterns, not chemical composition.

For a complete breakdown of your aftermarket rights under federal law, see our complete guide to engine treatments and the Magnuson-Moss Warranty Act. Keep your purchase receipt, oil change records, and Cerma's EPA ETV documentation on file as smart practice.

Why Mazda Owners Choose Cerma

Frequently Asked Questions