- Unique chemistry for vehicles with over 75,000 miles
- Boosted detergent and dispersant package
- Enhanced anti-wear additives
- Reduced sludge by 67%,VV demonstrating cleaning power that helps engines last longer and perform better
- Guaranteed Protection For 12,000 Miles/1-Year1
- API Licensed
1Normal Service – Up to 12,000 miles or one year, whichever comes first, in personal vehicles not operating under severe service.
Preventive maintenance that includes high-quality lubricants is key for keeping vehicles safe and dependable for the long haul. AMSOIL 100% Synthetic High-Mileage Motor Oil is designed specifically for the unique demands of high-mileage engines, helping extend the life of your vehicle. It delivers purpose-built protection at a time in your vehicle’s life where it could benefit from more-robust maintenance. It cleans and protects engines with boosted detergency and an additive package that fights oil breakdown and oil leaks.
ENGINE CLEANLINESS
- Enhanced detergency to breathe new life into dirty engines.
- Removes deposit buildup to help restore peak performance.
View the Official AMSOIL High-Mileage Technical Data Bulletin (PDF)
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Product information checked: September 2026. Product formulations, specifications, applications, availability and published claims can change.
For the latest official information, consult the AMSOIL Corproate Website.
