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AMSOIL 10W-30 100% Synthetic High-Mileage Motor Oil
Product code : HM1030QT-EA
- 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.
AMSOIL 10W-30 100% Synthetic High-Mileage Motor Oil
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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.
See the Product Data Bulletin for full details.
ENGINE CLEANLINESS
- Enhanced detergency to breathe new life into dirty engines.
- Removes deposit buildup to help restore peak performance.
SLUDGE REDUCTION
AMSOIL 100% Synthetic High-Mileage Motor Oil reduced sludge by 67%, VV demonstrating its cleaning power that helps engines last longer and perform better.
| 0 Hours | 134 Hours | 158 Hours | 178 Hours | Oil changed to AMSOIL 0W-20 High-Mileage Motor Oil | 208 Hours | 229 Hours | 252 Hours | 272 Hours | |
|---|---|---|---|---|---|---|---|---|---|
| Total Engine Sludge Rating | 0 | 1.85 | 2.25 | 3.12 | 1.9 | 1.44 | 1.4 | 1 |
VVBased on independent testing of AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil using a modified Sequence VH Test (ASTM D8256).
DEPOSIT REDUCTION
AMSOIL 100% Synthetic High-Mileage Motor Oil provides up to 62% better deposit prevention.WW1
| AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil | Valvoline* Full Synthetic High Mileage with MaxLife* Technology 0W-20 Motor Oil | Mobil 1* High Mileage 0W-20 Full Synthetic Motor Oil | |
|---|---|---|---|
| Total Deposits (mg) | 15.4 | 39.3 | 40.5 |
WW1Based on independent testing of AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil,
Valvoline* Full Synthetic High-Mileage with MaxLife* Technology 0W-20 Motor Oil (batch codeJ2622C5 purchased
December 21, 2022) and Mobil 1* High-Mileage 0W-20 Full Synthetic Motor Oil (batch code 11022L21A 6606
purchased December 8, 2022) in the industry-standard TEOST 33C Test (ASTM D6335) as required by the ILSAC
GF-6 specification.
*All trademarked names are the property of their respective owners and may be registered marks in some
countries. No affiliation or endorsement claim, express or implied, is made by their use.
DURABLE VISCOSITY
- Maintains proper film thickness in extreme operation.
OIL-CONSUMPTION CONTROL
- Thermally stable across a wide range of temperatures.
- Resists volatility and oil consumption.
LEAK PROTECTION
- Conditions seals to help prevent leaks.
API LICENSED
- Licensed by the American Petroleum Institute (API) to meet and exceed requirements commonly found in owner’s manuals.
AMSOIL 10W-30 100% Synthetic High-Mileage Motor Oil
SDS
SDSData Bulletin
Warranty
AMSOIL 10W-30 100% Synthetic High-Mileage Motor Oil
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Good productBy KEVIN, a Verified Buyer from Online on July 12, 2025Will buy again in future.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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OilBy MIKe, a Verified Buyer from California on July 11, 2025My daughter's car runs smoother and little quieter always have had awesome experience with amsoilBottom LineYes, I would recommend this to a friend.Was this review helpful?
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Amsoil ProductsBy KEVIN, a Verified Buyer from NC on July 08, 2025I will never go back to purchasing from big box stores again...Amsoil provides a premium product with premium service and delivery... it's all that I run in our 2018 4runner, 19 Tundra, 18 Scatpack Charger.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Pure gold for my 213,000 mile Jeep WranglerBy WILLIAM, a Verified Buyer from Eatonton Ga on July 08, 2025I had 12,000 mile oil tested and the results were surprising as to how good the oil still was. I’ve used this oil for 4 years and my engine has never run better and uses no oil.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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4runnerBy FELIX, a Verified Buyer from Arlington , WA on July 07, 2025very goodBottom LineYes, I would recommend this to a friend.Was this review helpful?
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Great OilBy DOUG, a Verified Buyer from Southwestern New York on July 06, 2025This oil works. Improved performance and mpg.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Great stuff!By PATMAN, a Verified Buyer on July 04, 2025AMSOIL is simply the best, period!Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Great oilBy JOSH, a Verified Buyer from Ocean NJ on July 03, 2025Feels like my trucks run smoother after switching from mobil1. 2010 Toyota Tacoma with 150,000 miles and 2006 Toyota Landcruiser with 190,000 miles.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Already see slightly better fuel mileageBy ANDREW, a Verified Buyer from Michigan on July 02, 2025The oil seems to be doing it's job. Engine sounds the same and runs the same, but I have noticed slightly better fuel mileage running this oil. Delivered promptly and intact.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Quality product/ priceBy THOMAS, a Verified Buyer from Chicago on June 26, 2025Heard about Amsoil for years, but never used. About 5 years ago I tried it, and haven't looked back. Run in both cars, and my motorcycle.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
