1. Why GM Car and SUV Owners Benefit from Permanent Ceramic Protection

General Motors has the deepest, most diverse gas-engine portfolio of any American manufacturer alongside Ford. From the 1.3L EcoTec three-cylinder in the Trax and Trailblazer to the 1,250 hp twin-turbo hybrid LT7 in the Corvette ZR1X, GM spans virtually every gas engine architecture in the US market - inline-three, inline-four, V6, V8 - across naturally-aspirated, single-turbo, twin-turbo, supercharged, and hybrid configurations.

This breadth means GM owners span an unusually wide demographic - from compact crossover buyers prioritizing efficiency to track-focused Corvette Z06 owners running HPDE events. What unites them is one of the strongest brand loyalty patterns in the American market: GM truck and SUV owners typically replace with another GM truck or SUV, and the Corvette and Camaro communities have multi-decade ownership horizons that rival any in automotive culture.

That longevity expectation aligns directly with Cerma's value proposition:

• Corvette owners typically keep their cars 10-20+ years, and original-owner Corvettes from C5, C6, C7, and now C8 generations are common. Used Corvettes hold value better than most American sports cars - and the C8 mid-engine platform has created an entirely new ownership demographic with high-AOV buyers planning long-term ownership of platforms that will likely become collectibles.
• Camaro owners typically keep their cars 8-15+ years - and with the Camaro discontinued after 2024 (sixth generation, alpha platform), the existing fleet is now appreciating slightly as the production end raises collectibility for SS, ZL1, 1LE, and limited-edition variants.
• Cadillac Blackwing owners bought specifically for performance - the CT4-V Blackwing and CT5-V Blackwing are some of the last manual-transmission luxury sport sedans in production and represent particular long-term ownership investments.
• GM SUV owners (Tahoe, Yukon, Suburban, Escalade, Yukon XL) often plan 8-12+ year ownership horizons - high mileage, lots of cold starts, frequent towing, mixed driving including extended highway runs.
• Equinox, Trax, Trailblazer, Buick, Acadia owners are typically value-conscious but research-driven - and the volume of these vehicles in service (1M+ units annually combined) means service knowledge and parts availability are excellent.

GM engines also have specific engineering characteristics that make Cerma especially relevant:

• The Gen-V Small Block V8 family. The LT1, LT2, LT4, L86, L87, L84, L82, L83 series uses the same fundamental architecture - a 90-degree pushrod V8 with cam-in-block design, direct injection, and (on most variants except LT6/LT7) cylinder deactivation through AFM (Active Fuel Management) or DFM (Dynamic Fuel Management). The architecture is engineering-distinctive - more compact than DOHC engines, more straightforward to service, and has earned a justified reputation for power-per-dollar value.
• The Corvette flat-plane V8s. The LT6 (Z06) and LT7 (ZR1) use a fundamentally different architecture: dual overhead cams with a flat-plane crankshaft. This makes them dramatically different from the typical American pushrod V8 - more European in character (similar to Ferrari and McLaren engines) and capable of much higher RPM operation (8,500 RPM on the LT6).
• Cylinder deactivation across the SUV/truck lineup. Most current GM V8s shut off cylinders during light-load driving for fuel economy. This creates the documented lifter failure pattern that's covered in detail in Section 7.
• Pure direct injection on most engines. All current EcoTec engines (LSY 2.0T, LFV 1.5T, LIH 1.3T) and most Small Block V8s (LT1, LT2, LT4, L86, L87, L84) use pure direct injection without port injection backup - meaning intake valve carbon buildup applies. The Corvette LT6 (Z06) and LT7 (ZR1) use both port and direct injection (PDI), making them the only current GM gas engines without the carbon buildup concern.
• Track use is common in Corvette and former Camaro communities. SCCA, NASA, HPDE, autocross, time attack - the C8 Corvette platform is one of the most track-driven sports cars in America, and the Cadillac Blackwing platforms are specifically engineered for track use.

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. For GM truck-specific guidance (Silverado/Sierra 1500, Duramax HD), see our GM 1500 guide and Duramax HD guide.

2. Which Cerma Product for Your GM Engine

Whether you're treating a 2026 Corvette ZR1X (LT7 hybrid AWD, 1,250 hp combined) or a 2014 Equinox with the LFV 1.5L Turbo, the Cerma application is the same: 2oz gas treatment ($105.60), one bottle, one-time application.

Current 2026 GM car/SUV gas engines:

Historical GM engines (still on the road):

3. Special Note: LT6 and LT7 Corvette Flat-Plane V8 (Z06 and ZR1)

The Corvette Z06's LT6 and the Corvette ZR1's LT7 represent the most engineering-distinctive V8 engines in GM history. Unlike every other V8 in the GM lineup, these are not Small Block pushrod engines - they are entirely different architectural approaches that have more in common with European exotic engines than traditional American V8s.

LT6 specifications (Z06)

• 5.5L (5,463cc) DOHC V8 - dual overhead cams, 4 valves per cylinder
• Flat-plane crankshaft - 180-degree crankshaft (similar to Ferrari V8s) instead of traditional cross-plane (90-degree)
• 670 horsepower at 8,400 RPM - world's most powerful naturally-aspirated production V8
• 460 lb-ft torque at 6,300 RPM
• 8,500 RPM redline - extraordinarily high for a V8
• 12.5:1 compression ratio
• Dual injection (port and direct) - prevents intake valve carbon buildup
• Dry-sump oiling with 8-quart capacity
• Tremec TR-9080 8-speed dual-clutch transaxle
• Engine code: Internally referred to by GM as the "Gemini" engine

LT7 specifications (ZR1, ZR1X)

• 5.5L (5,463cc) DOHC V8 with twin turbochargers - based on LT6 architecture
• Flat-plane crankshaft
• 1,064 horsepower at 7,000 RPM (ZR1) - most powerful V8 in American production car history
• 828 lb-ft torque at 6,000 RPM (ZR1)
• 1,250 horsepower combined (ZR1X) - LT7 + electric front motor + 1.9 kWh battery for hybrid AWD
• Twin Garrett-supplied turbochargers with electronic wastegate control
• Dual injection (port and direct)
• Dry-sump oiling
• 233 mph top speed (ZR1)
• Tremec TR-9080 8-speed dual-clutch transaxle

Why Cerma is particularly valuable on LT6 and LT7

• Extremely high RPM operation. The LT6 redlines at 8,500 RPM - higher than most production V8s by 1,000+ RPM. The LT7 redlines at 7,500 RPM. Both are exercised regularly at the upper portion of their RPM range. High-RPM operation accelerates wear at cam lobes, valve springs, valvetrain components, and bearing journals at rates that increase exponentially with RPM. Cerma's bonded ceramic at every contact surface provides sustained protection across the full operating range.
• Track use is the primary use case. The Corvette Z06 with the Z07 package is one of the most track-driven sports cars in America. The ZR1 with its 233 mph top speed is engineered for both street and track. Sustained track operation puts stress on every wear surface that street driving never replicates.
• Twin-turbocharger bearing protection (LT7). The LT7's two turbochargers run continuously at high temperatures. Cerma's bonded ceramic at turbo bearing surfaces provides sustained protection at the most thermally-stressed component in the engine.
• NO AFM/DFM cylinder deactivation. Both the LT6 and LT7 do not have cylinder deactivation - they are pure performance engines. This means the LT6 and LT7 are NOT subject to the AFM/DFM lifter failure pattern documented in Section 7. They are among the most reliable platforms in the entire GM V8 portfolio when applied correctly.
• Dual injection means no carbon issue. Both the LT6 and LT7 use port and direct injection (PDI), preventing the intake valve carbon buildup that affects pure-DI engines. Cerma's bonded ceramic complements this design.
• Hybrid integration on ZR1X. The 1.9 kWh battery and electric front motor create different operating patterns than non-hybrid Corvettes - more frequent engine start-stop, regenerative braking interactions, and electric-only driving in Stealth Mode. Cerma's permanent friction protection scales with these operating patterns regardless of mode.

4. Special Note: LT2 6.2L V8 (Corvette Stingray and E-Ray)

The LT2 6.2L V8 is the heart of the Corvette Stingray and the gas portion of the E-Ray hybrid. It is the latest iteration of the Gen-V Small Block V8 family, specifically tuned for mid-engine application with significant changes from previous Small Block applications.

LT2 specifications

• 6.2L (6,162cc) pushrod V8 - traditional Small Block architecture (cam-in-block, 16 valves)
• 490 horsepower at 6,450 RPM (495 hp with Z51 performance exhaust)
• 465 lb-ft torque at 5,150 RPM (470 lb-ft with Z51)
• 11.5:1 compression ratio
• Pure direct injection (no port injection)
• AFM cylinder deactivation - 8-cylinder to 4-cylinder operation under light load
• Dry-sump oiling with 7.5-quart capacity
• Mid-engine longitudinal mounting - rotated 180 degrees from front-engine Camaro/Cadillac LT1 applications
• Tremec TR-9080 8-speed dual-clutch transaxle

E-Ray hybrid integration

The Corvette E-Ray pairs the LT2 6.2L V8 (rear-axle) with a 160 hp electric motor (front-axle) and a 1.1 kWh self-charging battery for a combined 655 hp output. This makes the E-Ray Chevrolet's first AWD Corvette and provides 0-60 mph in 2.5 seconds. The E-Ray is the only Corvette engineered for year-round use with all-season tire options.

Why Cerma is particularly valuable on LT2

• Pure direct injection means carbon buildup applies. Plan for walnut shell blasting at 80,000-120,000 miles ($400-$800 typical cost). Cerma cannot prevent this but provides protection at every other wear surface.
• AFM cylinder deactivation creates lifter failure exposure. The LT2 uses AFM lifters for cylinder deactivation - this is the exact mechanism documented as the "GM lifter tick" issue (covered in Section 7). Cerma cannot prevent AFM lifter failure (the failure is mechanical fatigue of the variable-displacement lifters themselves, not friction-driven). However, Cerma provides protection at every other valvetrain surface, the cylinder walls, and the bearing journals.
• Dry-sump oiling system protection. The LT2 dry-sump system circulates oil through external tank and scavenge pumps. Cerma's bonded ceramic protects the same wear surfaces the dry-sump system supports.
• Track use is common on Z51-equipped Stingrays. The Z51 performance package (495 hp, performance exhaust, magnetic ride control, Brembo brakes, eLSD) makes the Stingray a serious track car. Cerma's permanent friction reduction directly benefits these owners.
• E-Ray hybrid integration. The hybrid system creates more frequent start-stop events than pure-gas operation. Cerma's ceramic protects from the very first revolution after restart.

5. Special Note: Cadillac Blackwing (LT4 and LF4)

The Cadillac CT5-V Blackwing and CT4-V Blackwing represent some of the most engineering-distinctive luxury performance vehicles in production. They use unique engines (the LT4 supercharged V8 and the LF4 twin-turbo V6) and offer manual transmissions in a luxury sport sedan segment that has largely abandoned them.

LT4 6.2L Supercharged V8 (CT5-V Blackwing)

• 6.2L (6,162cc) supercharged Small Block V8
• 668 hp / 659 lb-ft in current Blackwing tune
• 1.7L Eaton supercharger with integrated air-to-water intercooling
• Direct injection
• 10:1 compression ratio (lower than NA LT2 due to forced induction)
• Forged steel crankshaft, forged powdered-metal connecting rods
• 6-speed Tremec TR-6060 manual or 10L90 10-speed automatic
• Same engine architecture used in 2014-2024 Camaro ZL1 and 2016-2019 CTS-V Gen 3 (with different supercharger tunes)

LF4 3.6L Twin-Turbo V6 (CT4-V Blackwing)

• 3.6L (3,564cc) DOHC V6 with twin parallel turbochargers
• 472 hp / 445 lb-ft
• Direct injection
• Same architecture used in 2016-2019 Cadillac ATS-V (with similar supercharger tunes)
• 6-speed Tremec TR-3160 manual or 10L90 10-speed automatic

Why Cerma is particularly valuable on Blackwing engines

• Track-focused engineering. The Blackwing badge specifically identifies these as track-engineered Cadillacs. Both vehicles are designed and tested for HPDE and track-day use. Cerma's permanent friction reduction directly benefits these use cases.
• Supercharger and twin-turbo bearing protection. The LT4's Eaton supercharger and the LF4's twin Mitsubishi turbochargers run at high speeds and temperatures continuously. Cerma's bonded ceramic at bearing surfaces provides sustained protection.
• NO AFM/DFM cylinder deactivation. Like the Corvette LT6/LT7, the Blackwing engines do not have cylinder deactivation. They are pure performance engines and not subject to the AFM/DFM lifter failure pattern.
• Manual transmission community. Blackwing buyers who specifically chose the manual transmission tend to be highly-engaged enthusiasts who plan long-term ownership. Cerma's one-time application is well-aligned with this ownership pattern.
• Pure direct injection on both engines. Plan for walnut shell blasting at 80,000-120,000 miles for both LT4 and LF4 applications.

6. Special Note: Small Block V8 Family (L87, L84, L82, L83)

The current production Small Block V8 family in GM's truck and SUV lineup includes the L87 6.2L, L84 5.3L, L82 5.3L (older), and L83 5.3L (older). These engines power the Cadillac Escalade, GMC Yukon Denali, Chevrolet Tahoe and Suburban, and historical Camaro applications.

Common architecture

• Cam-in-block (pushrod) design - traditional Small Block architecture
• 16 valves with hydraulic roller lifters
• DFM (Dynamic Fuel Management) on most current applications - 17 different cylinder firing patterns possible (vs AFM's 2 patterns)
• Direct injection
• 10L80 10-speed automatic transmission on most applications

Why Cerma is particularly valuable on Small Block V8s

• Towing applications - GM SUVs are commonly used for towing trailers, boats, and RVs. Sustained towing operation puts continuous load on the engine.
• High-mileage durability. Small Block V8s have demonstrated good long-term durability when AFM/DFM is properly addressed (covered in Section 7). Cerma's preventive friction reduction extends the useful life.
• Pure direct injection. Plan for walnut shell blasting at 80,000-120,000 miles for L87, L84, L82, and L83 applications.
• Volume engine. The Small Block V8 family appears in 1M+ vehicles annually across GM's portfolio. Service knowledge is excellent and parts are widely available.

7. Honest Disclosure: GM AFM/DFM Lifter Failure Pattern

This is one of the most important sections in this guide. The GM Gen-V Small Block V8 family has had a well-documented lifter failure pattern that affects most current and recent applications. If you own or are considering a GM V8-equipped vehicle (Camaro SS, Camaro ZL1, Cadillac Escalade, Yukon Denali, Tahoe, Suburban, or any V8 truck), this section is essential reading.

What AFM and DFM are

AFM (Active Fuel Management) and DFM (Dynamic Fuel Management) are GM's cylinder deactivation technologies. They allow the V8 engine to shut off cylinders during light-load driving to improve fuel economy:

• AFM (introduced 2005) deactivates 4 cylinders during light load - 8-cylinder to 4-cylinder operation
• DFM (introduced 2019) is more sophisticated - 17 different firing patterns from 1 to 8 cylinders
• Both technologies use specialized variable-displacement lifters that can be deactivated by oil pressure to allow the cylinder to skip its compression and combustion strokes

The lifter failure pattern

The variable-displacement lifters used in AFM and DFM systems have a documented mechanical failure pattern. The failure mechanism involves the internal locking mechanism within the lifter that allows it to switch between active and deactivated states. Over time and with high cycle counts, these lifters can fail mechanically:

• Collapsed lifters - the lifter internal mechanism fails, causing it to no longer maintain proper valvetrain geometry
• Camshaft lobe damage - failed lifters can damage the camshaft lobe they ride on
• Bent pushrods - improper valvetrain geometry can bend pushrods
• Valvetrain damage - in advanced cases, valves can contact pistons
• In severe cases, catastrophic engine damage

Symptoms

• "GM lifter tick" or valvetrain rattle - distinctive ticking sound from the engine, often most pronounced at idle or low RPM
• Misfires on specific cylinders (usually those equipped with deactivation lifters)
• Check engine lights with codes related to cylinder deactivation, misfires, or rough running
• Decreased power and fuel economy
• In advanced cases, engine knock or grinding sounds

Affected engines

• L87 6.2L V8 - DFM (Cadillac Escalade, GMC Yukon Denali, Tahoe High Country, Suburban)
• L84 5.3L V8 - DFM (Tahoe, Yukon, Suburban)
• L86 6.2L V8 - AFM (older Silverado, Sierra, Tahoe, Yukon, Escalade applications)
• L83 5.3L V8 - AFM (older Silverado, Sierra, Tahoe applications)
• L82 5.3L V8 - AFM (older applications)
• LT1 6.2L V8 - AFM (Camaro SS 2014-2024, base Camaro 1LE)
• LT2 6.2L V8 - AFM (Corvette Stingray and E-Ray)
• LT4 6.2L Supercharged V8 - AFM in some applications (Camaro ZL1, CTS-V Gen 3, current CT5-V Blackwing - with caveat that Blackwing applications often have AFM disabled by default tune)

NOT affected (no AFM/DFM)

• LT6 5.5L V8 - Corvette Z06 (no cylinder deactivation, pure performance engine)
• LT7 5.5L V8 - Corvette ZR1 and ZR1X (no cylinder deactivation)
• LF4 3.6L V6 - Cadillac CT4-V Blackwing (no V6 cylinder deactivation)
• LGX 3.6L V6 - older Cadillac and Camaro V6 applications (V6 doesn't use cylinder deactivation in same form)
• EcoTec engines - LSY 2.0T, LFV 1.5T, LIH 1.3T (turbocharged, no cylinder deactivation)

GM's response

GM has issued multiple Technical Service Bulletins (TSBs) addressing the issue and extended warranty coverage on certain affected vehicles. Various class action lawsuits have been filed and settled. GM has updated lifter components in subsequent production.

The proven solutions

Two proven approaches:

1. Lifter replacement. If you experience symptoms, mechanical replacement of all 16 lifters (or just the AFM/DFM-equipped lifters depending on damage extent), often combined with camshaft inspection and replacement if damaged. Cost is typically $2,500-$5,000+ at GM dealerships, $1,800-$3,500 at independent specialists with proper experience.
2. AFM/DFM delete. Many performance-oriented owners (particularly in the Camaro SS and ZL1 community) preemptively delete AFM/DFM through a combination of: (a) tuning the ECU to disable cylinder deactivation, and (b) replacing the variable-displacement lifters with traditional lifters and removing the AFM/DFM oil control valves. This is the most reliable long-term fix. Cost is typically $1,500-$3,000 at performance shops including parts and tune.

Cerma's role with AFM/DFM lifter failure

• Cerma cannot prevent or repair AFM/DFM lifter failure. The failure mechanism is mechanical fatigue of the variable-displacement lifters themselves - this is a hardware issue. Cerma is added to engine oil and bonds to engine metal surfaces, but cannot change the structural durability of the lifters.
• Cerma cannot reverse damage that has already occurred. If you have collapsed lifters, camshaft damage, or bent pushrods - mechanical repair is required.
• Cerma is excellent for healthy GM V8 engines. If your V8 has not yet experienced lifter symptoms (most engines under 60,000-80,000 miles are still in good condition), Cerma provides preventive friction reduction at every other wear surface. The engine still has cylinder walls, bearings, cam lobes outside of the AFM/DFM-equipped cylinders, valve stems and guides, piston rings, and turbocharger or supercharger bearings (where applicable) that benefit from Cerma's permanent ceramic protection.
• For owners who delete AFM/DFM, Cerma is ideal. Once the AFM/DFM has been deleted (lifters replaced with traditional ones, ECU tune disabled cylinder deactivation), the engine becomes one of the most reliable platforms in the GM portfolio. Cerma applied at the next oil change after the delete provides permanent friction protection for an engine that's been engineered out of its primary failure mode.
• For Corvette LT2 and Camaro LT1 owners specifically: Many enthusiasts run AFM disabled tunes (without mechanical AFM delete) as a partial measure - the ECU never commands cylinder deactivation, but the lifters remain in place. This reduces but does not eliminate the lifter failure exposure. Cerma is appropriate at any point in this strategy. For maximum reliability, the full mechanical AFM delete is the gold standard.

8. Special Note: EcoTec Turbocharged Crossover Engines (LSY, LFV, LIH)

The EcoTec turbocharged engine family powers GM's volume crossover lineup - Equinox, Trax, Trailblazer, Acadia, Buick Encore GX, Envision, Envista, plus historical Cadillac CT4 and CT5 base models.

LSY 2.0L Turbo

• 2.0L (1,998cc) inline-four turbocharged
• 237-310 hp depending on application (CT4-V uses 325 hp tune)
• Direct injection
• Used in: Equinox RS, Trailblazer RS (some), Acadia, Cadillac CT4 base/Premium Luxury, CT5 base/Premium Luxury, XT4, Buick Envision

LFV 1.5L Turbo

• 1.5L (1,490cc) inline-four turbocharged
• 137-170 hp
• Direct injection
• Used in: Older Equinox base, older Malibu, some Trailblazer/Trax variants

LIH 1.3L Turbo I3

• 1.3L (1,332cc) inline-three turbocharged
• 137-155 hp
• Direct injection
• Used in: Trax, Trailblazer (base/most trims), Buick Encore GX, Buick Envista

EcoTec 1.3L oil consumption disclosure

The LIH 1.3L Turbo (and to a lesser extent the LFV 1.5L Turbo) has had documented oil consumption issues on some applications. The issue varies in severity but typically manifests as accelerated oil consumption between scheduled oil changes - some affected vehicles consuming 1+ quarts between oil changes when normal expectation is minimal consumption. Class action settlements and TSB-driven repairs apply to specifically affected vehicles. The proven mechanical solution typically involves piston ring replacement or PCV system updates depending on the specific cause.

Cerma cannot reverse oil consumption caused by piston ring sealing issues or PCV valve problems - those require mechanical repair. Cerma can provide preventive friction protection for healthy engines and may help reduce friction-driven wear that contributes to long-term ring sealing degradation.

Why Cerma works on EcoTec

• All EcoTec engines are pure direct injection - intake valve carbon buildup applies (walnut shell blasting at 80,000-120,000 miles)
• Turbocharger bearing protection - all EcoTec engines are turbocharged
• Three-cylinder operation on LIH creates different wear patterns than four-cylinder engines (more vibration, different torque curve)
• Volume serviceability - EcoTec engines appear in 500K+ units annually combined

9. Special Note: Historical Camaro Engines (LT1 SS, LT4 ZL1, LGX, LTG)

The 2010-2024 Chevrolet Camaro (sixth generation, alpha platform) was one of the most engineering-distinctive American sport coupes in production history. Production ended after the 2024 model year, making the existing fleet now historical. The Camaro community remains highly active and collectible appreciation has begun on SS, ZL1, and 1LE variants.

Camaro SS - LT1 6.2L V8 (2016-2024)

• 6.2L (6,162cc) Small Block V8 - same architecture as Corvette LT2 and current Cadillac LT4
• 455 hp / 455 lb-ft
• AFM cylinder deactivation - subject to lifter failure pattern
• 11.5:1 compression ratio
• Direct injection
• Tremec TR-6060 6-speed manual or 8L90 8-speed automatic (10L80 10-speed on later applications)

Camaro ZL1 - LT4 6.2L Supercharged V8 (2017-2024)

• 650 hp / 650 lb-ft
• 1.7L Eaton supercharger
• Tremec TR-6060 6-speed manual or 10L90 10-speed automatic
• 1LE package available - track-focused with magnetic ride control, additional cooling, weight reduction

Camaro V6 - LGX 3.6L V6 (2016-2024)

• 3.6L DOHC V6 with direct injection
• 335 hp / 284 lb-ft
• No cylinder deactivation - not subject to AFM/DFM lifter failure
• Manual or automatic transmissions available

Camaro Turbo - LTG 2.0L Turbo (2016-2024)

• 2.0L turbocharged inline-four
• 275 hp / 295 lb-ft
• Direct injection
• 1LE package available

Why Cerma works on historical Camaros

• Aging fleet means high-mileage engines. Sixth-gen Camaros are now 2-12 years old. Many have 50,000-150,000+ miles. Preventive friction reduction extends useful life.
• Active modification ecosystem. Whipple, Magnuson, Vortech, ProCharger, Lingenfelter, Hennessey - all support Camaro platforms.
• Track-driven 1LE applications - the SS 1LE and ZL1 1LE are some of the most track-driven American cars in their era.
• AFM/DFM lifter exposure - SS and ZL1 owners should consider AFM delete for long-term reliability (covered in Section 7).

10. How to Install Cerma in Your GM Vehicle

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

1. Complete a normal oil change. Drain old oil, replace filter (ACDelco PF63 / PF64 / PF66 or similar quality filter meeting GM specs), and add fresh oil to your specified weight. Modern GMs typically use 0W-20 (Equinox, Trax, Trailblazer, most current crossovers, EcoTec applications), 5W-30 (most Small Block V8 SUVs, current LT2 Stingray), 0W-40 dexos R (Corvette Z06 LT6, ZR1 LT7, Cadillac Blackwing LT4 and LF4), or per your owner's manual. Always reference your specific owner's manual. For DIY: LT2 6.2L holds 7.5 quarts (dry-sump), LT6 5.5L holds 8 quarts (dry-sump), LT4 6.2L holds 6.5 quarts, L87 6.2L holds 8 quarts, LSY 2.0L holds 5 quarts, LIH 1.3L holds 4 quarts.
2. Pour the Cerma 2oz bottle into your oil fill port. One full bottle for any GM gas car or SUV.
3. Replace the oil cap and start the engine. No warm-up procedure required. Drive normally including spirited driving, track sessions, towing, or long highway commutes. 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. Corvette Z06/ZR1 owners typically notice smoother high-RPM operation. Camaro SS/ZL1 owners often report more consistent power delivery. Cadillac Blackwing owners often notice subtle smoothing of the V8 character at idle. Equinox/Trax/Trailblazer owners often report smoother turbo response.
5. Continue normal oil changes at GM's recommended intervals (typically 7,500-10,000 miles for current applications, or per 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.

11. 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. Corvette owners typically notice particularly smooth high-RPM operation - the LT2/LT6/LT7 engines' already-refined character becomes even more refined. Camaro SS/ZL1 owners often notice quieter cold-start operation. Cadillac Blackwing owners often report smoother boost transitions. Equinox/Trailblazer owners often notice more consistent throttle response.

500 to 2,000 miles:

Throttle response feels more linear, particularly during transitions in and out of boost on turbocharged GMs. Cold-start operation feels smoother on all engines. Corvette Z06/ZR1 owners often notice slightly more refined behavior at the upper RPM range where the flat-plane V8 is most active.

2,000 to 5,000 miles:

The ceramic bond is largely complete. Friction reduction is at full effect. Many GM owners report measurable fuel economy improvements during this window - Cerma's customer-reported range is 4-21%* depending on use patterns.

5,000+ miles (permanent):

The ceramic matrix is fully bonded. From here on, your GM has the friction reduction benefit for the life of the engine. No reapplication, no maintenance, no recurring cost.

12. Complete GM Drivetrain Protection

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

13. GM Warranty Considerations

General Motors offers a 3-year/36,000-mile new vehicle limited warranty plus a 5-year/60,000-mile powertrain warranty. CPO-eligible vehicles can extend coverage through GM Certified Pre-Owned. Many GM owners worry that aftermarket products will void these warranties.

The federal Magnuson-Moss Warranty Act protects you. General Motors 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.
• Inert ceramic chemistry - Cerma doesn't change oil viscosity, additive package, or filtration. Your GM continues running on dexos1 Gen 3 (most applications) or dexos R (Corvette Z06, Cadillac Blackwing) compliant oil.
• Compatible with all GM dealer service routines - every oil change, every GM CPO inspection, no changes to your routine.
• Does not interact with GM technology - including AFM/DFM cylinder deactivation, the 10L80/10L90 10-speed automatic, the Tremec dual-clutch transaxle, hybrid powertrains (Corvette E-Ray, ZR1X), or any other GM engineering.

For a complete breakdown of your aftermarket rights under federal law, see our complete guide to engine treatments and the Magnuson-Moss Warranty Act.

Why GM Owners Choose Cerma

Frequently Asked Questions