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Cermax Ceramic 10W-40 Synthetic Motor Oil 30K Mile | Cerma

Cermax Ceramic 10W-40 Synthetic Motor Oil 30K Mile | Cerma

Regular price $19.50 USD
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Cermax Ceramic 10W-40 Synthetic Motor Oil — STM-3 Nano Silicon Carbide Technology | Up to 30,000-Mile Oil Changes

Experience the world's first self-cleaning motor oil in the heavy-duty viscosity built for maximum protection. Cermax Ceramic 10W-40 Synthetic Motor Oil is engineered with Cerma STM-3 Run Clean Technology featuring Nano Silicon Carbide (SiC) for up to 30,000-mile oil change intervals. This advanced ceramic synthetic oil permanently bonds a diamond-hard SiC matrix to metal sub-surfaces, continuously cleaning, protecting, and restoring your engine with every mile. 10W-40 delivers the thickest protective film in the Cermax gasoline oil lineup — the go-to viscosity for high-mileage engines, hot climates, heavy loads, performance vehicles, marine engines, golf carts, and any application where maximum oil film strength is critical. Available in quart, gallon, case, pail, and drum sizes.

  • ✅ Up to 30,000-Mile Oil Changes: Dramatically extends drain intervals — save time and money on maintenance
  • ✅ Self-Cleaning Technology: STM-3 Run Clean Technology prevents sludge, carbon buildup, and deposit formation on metal surfaces
  • ✅ Permanent Nano SiC Protection: Silicon Carbide particles continuously reinforce the ceramic bond with every oil change
  • ✅ Maximum Film Strength: 10W-40 provides the thickest protective film for engines under heavy load, high heat, or with significant mileage
  • ✅ Multi-Application Versatility: Cars, trucks, SUVs, vans, marine engines, watercraft, golf carts, and power equipment
  • ✅ Restores Power & Compression: Fills microscopic wear in cylinder walls, restoring lost horsepower and torque
  • ✅ Reduces Friction, Harmonics & Vibration: SiC ceramic technology for smoother, quieter engine operation
  • ✅ Carbon & Moisture Guard: Triple protection against wear, deposits, and emissions
  • ✅ Volume Discounts: Buy 2 and save 1.35% — buy in bulk for additional savings
  • ✅ PTFE-Free & Solvent-Free: No Teflon, no solvents — environmentally safe formula made in the USA
🔬 What Makes Cermax Different from Every Other Motor Oil?

Conventional synthetic oils — even premium brands — simply lubricate. They sit between metal surfaces and reduce friction temporarily, but do nothing to permanently repair wear or prevent deposit formation at the molecular level. Cermax is fundamentally different. Its STM-3 technology applies a permanent Nano Silicon Carbide (SiC) matrix seal within the metal sub-surfaces of your engine. SiC has a Mohs hardness of 9.5 (nearly as hard as diamond) and a melting point of 2,730°C. This ceramic matrix continuously cleans engine surfaces, prevents contaminants from depositing on metal, and maintains peak performance mile after mile — which is why Cermax delivers 30,000-mile drain intervals while actually making your engine cleaner over time, not dirtier.

🌡️ Why Choose 10W-40?

10W-40 is the workhorse viscosity for demanding applications. Its thicker oil film at operating temperature provides maximum protection for high-mileage engines with widened clearances, hot-climate vehicles where thinner oils lose film strength, towing and heavy-load situations, marine and watercraft engines running under continuous high load, and performance engines that generate extreme heat. It's also the standard grade for many golf carts and outdoor power equipment. If your application demands the strongest possible oil film combined with ceramic SiC technology, Cermax 10W-40 is your best choice.

📦 Available Sizes

Size Best For
Quart (32 oz) Individual oil changes, top-offs between changes
12 Quart Case Multiple oil changes, stocking up for long-term use
1 Gallon Single oil changes, marine engine top-offs
4 Gallon Case Multi-vehicle households, marina supply, golf course fleets
5 Gallon Pail Shops, garages, marine service centers
55 Gallon Drum Commercial fleets, dealerships, high-volume operations

Use the Size dropdown above to select your preferred quantity. Volume discounts apply automatically when buying multiples.

🔬 How STM-3 Run Clean Technology Works

At the core of Cermax 10W-40 is Cerma STM-3 — the next generation lubricating oil with SiC (Run Clean) technology. The 100% active ingredient applies a permanent Nano Silicon Carbide (SiC) matrix seal within the metal sub-surfaces of your engine:

  • Self-Cleaning Action: Prevents contaminants from depositing on metal surfaces — your engine gets cleaner over time, not dirtier
  • Permanent Ceramic Bond: SiC particles bond to metal at the molecular level, creating a diamond-hard surface (Mohs 9.5)
  • Friction Reduction: Reduces metal-to-metal contact, lowering friction, harmonics, and vibration
  • Power Restoration: Fills micro-imperfections in cylinder walls, restoring horsepower and torque
  • Carbon Guard: Protects against performance-degrading sludge and abrasive carbon buildup
  • Moisture Guard: Superior protection against moisture contamination and corrosion — critical for marine applications
  • Non-Newtonian Properties: Gets stronger under stress — maximum protection during heavy loads and high RPM

📋 How to Use Cermax 10W-40

💡 For Best Results:

For maximum protection, first treat your engine with Cerma STM-3 Engine Treatment (a one-time permanent treatment), then use Cermax 10W-40 for all subsequent oil changes. The engine treatment creates the initial deep ceramic bond, and Cermax oil continuously reinforces it. Check our Value Packages for bundled savings on treatment + oil.

  1. Check Capacity: Refer to your owner's manual for your engine's exact oil capacity and confirm 10W-40 is the recommended viscosity.
  2. Drain Old Oil: Warm your engine, then drain existing oil and replace the oil filter.
  3. Fill with Cermax: Add the correct amount of Cermax Ceramic 10W-40 Synthetic Motor Oil.
  4. Drive & Enjoy: Drive or operate normally. Cermax provides up to 30,000 miles of protection per oil change.
  5. Do Not Mix Additives: Cermax is a complete protection system. Do not add any other oil additives or treatments.

📋 Specifications & Certifications

Specification Details
Viscosity Grade SAE 10W-40
API Service Rating API SN, SM
Oil Change Interval Up to 30,000 miles
Core Technology STM-3 Nano Silicon Carbide (SiC) Run Clean Technology
SiC Hardness Mohs 9.5
SiC Melting Point 2,730°C
Turbo/Supercharger Safe Yes — all induction engines
Formula PTFE-free, solvent-free, environmentally safe
Made In USA

🚗 Compatibility

Vehicle / Engine Type Compatible
High-Mileage Gasoline Engines (100,000+ miles) ✅ Excellent — thicker film protects worn engines
Hot Climate & Heavy-Load Vehicles ✅ Ideal — maintains film strength in extreme heat
Marine & Watercraft Gasoline Engines (Inboard/Outboard) ✅ Yes — moisture guard protects against marine corrosion
Golf Carts (Gas-Powered) ✅ Yes — 10W-40 is the standard golf cart viscosity
Passenger Cars (where 10W-40 is specified) ✅ Yes
SUVs & Crossovers ✅ Yes
Trucks & Vans (Gasoline) ✅ Yes — extra protection for towing and hauling
High-Performance & Turbocharged Gasoline Engines ✅ Yes — all induction motors
Supercharged Gasoline Engines ✅ Yes
Multi-Valve Fuel Injected Engines ✅ Yes
Small Engines & Power Equipment (Generators, Mowers) ✅ Yes
Meets API SN/SM Requirements ✅ Yes

Always verify your vehicle or equipment manufacturer recommends 10W-40 viscosity. If your manual specifies a different grade, see our other Cermax viscosity options.

🛡️ Cermax 10W-40 vs. Leading Synthetic Oils

Feature Cermax 10W-40 Premium Full Synthetic Conventional Oil
Oil Change Interval Up to 30,000 miles 7,500–15,000 miles 3,000–5,000 miles
Ceramic SiC Technology ✅ Yes ❌ No ❌ No
Self-Cleaning Action ✅ Run Clean Technology Limited detergents ❌ No
Heavy-Load & Marine Protection Superior (40-wt film + SiC + moisture guard) Good Fair
Restores Compression ✅ Yes ❌ No ❌ No
Corrosion & Moisture Protection ✅ Carbon & Moisture Guard Partial ❌ No
Cost Per Mile Lowest (fewer changes) Moderate Highest (frequent changes)

🔗 Complete Your Cerma Engine Protection

❓ Frequently Asked Questions

What makes Cermax 10W-40 different from regular synthetic oil?
Cermax contains STM-3 Run Clean Technology with Nano Silicon Carbide (SiC) — a ceramic compound nearly as hard as diamond (Mohs 9.5). Unlike conventional synthetics that only lubricate, Cermax permanently bonds a ceramic matrix to your engine's metal surfaces, continuously cleans deposits, and prevents contaminant buildup. This is why it achieves up to 30,000-mile drain intervals while making your engine cleaner over time.
Can I really go 30,000 miles between oil changes?
Yes. Cermax Ceramic Synthetic Motor Oil is engineered for up to 30,000-mile drain intervals under normal operating conditions. The SiC technology helps the oil maintain its protective and cleaning properties far longer than conventional synthetics. For marine and heavy-load applications, we recommend periodic oil analysis to confirm the optimal interval for your specific operating conditions.
Can I use Cermax 10W-40 in my boat or watercraft?
Yes. Cermax 10W-40 is an excellent choice for marine gasoline engines. The thicker 40-weight film provides robust protection under the continuous high-load conditions typical of marine use, and the Moisture Guard technology provides superior corrosion protection in humid, saltwater, and freshwater environments. The SiC ceramic bond is especially valuable for marine engines that may sit idle between uses, as it provides permanent protection even when the oil has drained from surfaces.
Is Cermax 10W-40 good for gas-powered golf carts?
Yes. 10W-40 is the standard recommended viscosity for most gas-powered golf carts (Club Car, EZ-GO, Yamaha). Cermax 10W-40 provides the same advanced SiC ceramic protection for golf cart engines as it does for automotive engines — reducing friction, preventing carbon buildup, and extending engine life. Golf courses using Cermax for their fleets benefit from dramatically extended oil change intervals and reduced maintenance costs.
Should I use 10W-40 or 10W-30 for my high-mileage vehicle?
Both are excellent choices for high-mileage engines. 10W-40 provides a thicker oil film at operating temperature, offering more protection for engines with significant wear. 10W-30 is slightly thinner, which may improve fuel economy. If your manufacturer lists both as acceptable and your engine has over 100,000 miles, 10W-40 is generally the better choice for maximum protection. Always check your owner's manual.
Do I need the Cerma Engine Treatment too, or just the oil?
For maximum results, we recommend starting with the Cerma STM-3 Engine Treatment (a one-time, permanent treatment) before switching to Cermax oil. The engine treatment creates the initial deep ceramic bond, and Cermax oil continuously reinforces it. However, Cermax oil provides significant benefits on its own — the SiC technology will build ceramic protection over time with each oil change.
What does "self-cleaning" oil mean?
Cermax's STM-3 Run Clean Technology applies a Nano SiC matrix that prevents sludge, carbon deposits, and contaminants from adhering to metal surfaces. Unlike conventional detergent-based oils that suspend particles until they're overwhelmed, Cermax creates a ceramic barrier at the molecular level that actively repels deposit formation. Your engine actually gets cleaner the longer you run Cermax oil.
Is Cermax available in other viscosities?
Yes. Cermax Ceramic Synthetic Motor Oil is available in multiple viscosity grades including 0W-20, 5W-20, 5W-30, 5W-40, 10W-30, 10W-40, 15W-40, and 20W-50. Visit our Motor Oil collection to find the right viscosity for your vehicle or equipment.
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