AMSOIL 100% Synthetic High-Mileage Motor Oil | Engines Over 75,000 Miles
AMSOIL 100% Synthetic High-Mileage Motor Oil is engineered for engines with over 75,000 miles. 67% sludge reduction and up to 62% better deposit prevention than competing high-mileage oils. Boosted seal conditioners help stop leaks.
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AMSOIL 100% Synthetic High-Mileage Motor Oil | Engines Over 75,000 Miles: Every Product in the Line
| Product | Viscosity | Details | Shop |
|---|---|---|---|
| AMSOIL 100% Synthetic High-Mileage Motor Oil 0W-20 | 0W-20 | Details → | Shop at AMSOIL.com → |
| AMSOIL 100% Synthetic High-Mileage Motor Oil 10W-30 | 10W-30 | Details → | Shop at AMSOIL.com → |
| AMSOIL 100% Synthetic High-Mileage Motor Oil 5W-20 | 5W-20 | Details → | Shop at AMSOIL.com → |
| AMSOIL 100% Synthetic High-Mileage Motor Oil 5W-30 | 5W-30 | Details → | Shop at AMSOIL.com → |
Engineered for Vehicles With Over 75,000 Miles
With rapidly rising new-vehicle pricing and the high cost of repairs, drivers are keeping their vehicles on the road longer than ever. 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 cleans and protects with boosted detergency and an additive package that fights oil breakdown and oil leaks.
Available in four viscosity grades — 0W-20, 5W-20, 5W-30, and 10W-30 — High-Mileage Motor Oil covers a wide range of passenger-vehicle applications with broad GM dexos1 Gen 3, Ford, Chrysler and ILSAC GF-7A specification coverage.
Choose Your Viscosity
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Engine Cleanliness — 67% Sludge Reduction
Deposits reduce engine performance and efficiency. AMSOIL 100% Synthetic High-Mileage Motor Oil provides enhanced detergency to breathe new life into dirty engines by removing deposit buildup to help restore peak performance.
Its exceptional cleaning power is demonstrated by its performance in the modified Sequence VH test (ASTM D8256), where AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil reduced sludge by 67%, demonstrating the cleaning power that helps engines last longer and perform better.
In the TEOST 33C Test (ASTM D6335) required by the ILSAC GF-6 specification, AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil provided up to 62% better deposit prevention than Valvoline Full Synthetic High-Mileage with MaxLife Technology 0W-20 Motor Oil and Mobil 1 High-Mileage 0W-20 Full Synthetic Motor Oil.
Durable Viscosity
Engines can lose compression as cylinders and piston rings wear, leading to reduced horsepower. Maintaining a consistent fluid film helps to counteract compression loss by sealing combustion chambers to maintain performance. AMSOIL 100% Synthetic High-Mileage Motor Oil is formulated to maintain viscosity even in extreme temperatures. Its highly durable viscosity provides proper film thickness, even during extreme operation.
Oil-Consumption Control
Oil consumption is often an issue in high-mileage vehicles. AMSOIL 100% Synthetic High-Mileage Motor Oil is thermally stable across a wide range of temperatures, resisting volatility and consumption.
Leak Protection
Oil leaks are an inconvenience and if left unchecked can lead to lack of lubrication and engine failure. AMSOIL 100% Synthetic High-Mileage Motor Oil provides a boosted dose of seal conditioners to restore aging seals and help stop leaks.
Service Life
Normal Service
- Up to 12,000 miles or one year
- Whichever comes first
- Personal vehicles not operating under severe service
Severe Service
Follow the severe-service drain interval prescribed by your vehicle manufacturer in your owner’s manual.
AMSOIL 100% Synthetic High-Mileage Motor Oil is compatible with other conventional and synthetic motor oils. Mixing other oils with AMSOIL motor oils, however, will shorten the oil’s life expectancy and reduce its performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed. Aftermarket oil additives are not recommended for use with AMSOIL synthetic motor oils.
Applications and Specifications
0W-20 (HM020)
- API SQ, SP, SN Plus
- ILSAC GF-7A, GF-6A, GF-5
- GM dexos1 Gen 3 (supersedes dexos1 Gen 2 and 6094M)
- Chrysler MS-6395
- Ford WSS-M2C947-A, WSS-M2C947-B1, WSS-M2C962-A1, WSS-M2C972-A1
5W-20 (HM520)
- API SQ, SP, SN Plus
- ILSAC GF-7A, GF-6A, GF-5
- GM dexos1 Gen 3 (supersedes dexos1 Gen 2 and 6094M)
- Chrysler MS-6395
- Ford WSS-M2C930-A, WSS-M2C945-A, WSS-M2C945-B1, WSS-M2C960-A1, WSS-M2C970-A1
5W-30 (HM530)
- API SQ, SP, SN Plus
- ILSAC GF-7A, GF-6A, GF-5
- GM dexos1 Gen 3 (supersedes dexos1 Gen 2, GM 4718M, 6094M)
- Chrysler MS-6395
- Ford WSS-M2C929-A, WSS-M2C946-A, WSS-M2C946-B1, WSS-M2C961-A1, WSS-M2C971-A1
10W-30 (HM1030)
- API SQ, SP, SN Plus
- ILSAC GF-7A, GF-6A, GF-5
- GM 4718M, 6094M
- Chrysler MS-6395
- Ford WSS-M2C205-A
Order AMSOIL High-Mileage Motor Oil
Give your high-mileage engine purpose-built protection with AMSOIL 100% Synthetic High-Mileage Motor Oil.
Shop High-Mileage Motor Oil at AMSOIL.com Independent AMSOIL Dealer #1858536
For wholesale pricing, contact National Synthetics about the Preferred Customer program and save up to 25% on all AMSOIL products.
Frequently Asked Questions
AMSOIL Product Warranty
Using AMSOIL synthetic lubricants or practicing extended drain intervals does not void your new vehicle or equipment manufacturer warranty. All AMSOIL lubricants and filters are covered by the AMSOIL Limited Warranty. For complete information visit AMSOIL.com/guarantee.
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Frequently Asked Questions
When should I switch to AMSOIL High-Mileage Motor Oil?
AMSOIL 100% Synthetic High-Mileage Motor Oil is engineered for vehicles with over 75,000 miles. Its boosted detergency, durable viscosity, oil-consumption control and seal-conditioner package address the issues high-mileage engines commonly face: deposit buildup, compression loss, oil consumption and leaking seals.
Does AMSOIL High-Mileage Motor Oil help with oil leaks?
Yes. AMSOIL 100% Synthetic High-Mileage Motor Oil provides a boosted dose of seal conditioners to restore aging seals and help stop leaks. Oil leaks are an inconvenience and, if left unchecked, can lead to lack of lubrication and engine failure.
How does AMSOIL High-Mileage compare to Valvoline MaxLife or Mobil 1 High-Mileage?
In independent testing of AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil in the industry-standard TEOST 33C Test (ASTM D6335) required by the ILSAC GF-6 specification, AMSOIL delivered up to 62% better deposit prevention than Valvoline Full Synthetic High-Mileage with MaxLife Technology 0W-20 and Mobil 1 High-Mileage 0W-20 Full Synthetic Motor Oil.
Will using High-Mileage Motor Oil affect my factory warranty?
No. Using AMSOIL synthetic lubricants or practicing extended drain intervals does not void your new vehicle or equipment manufacturer warranty. All AMSOIL lubricants and filters are covered by the AMSOIL Limited Warranty.
How often should I change AMSOIL High-Mileage Motor Oil?
In personal vehicles not operating under severe service, change up to 12,000 miles or one year, whichever comes first. Under severe service, follow the severe-service drain interval prescribed by your vehicle manufacturer in your owner's manual.
Which viscosity should I use for my vehicle?
Always follow the viscosity recommendation in your owner's manual. Use the AMSOIL Product Guide to find the right viscosity and specification for your specific vehicle.