AMSOIL’s Purpose Built 0W-20 100% Synthetic High-Mileage Motor Oil
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 (or engines which have been using oils which left deposits), helping extend the life of your vehicle.
This is the first step to help clean up that engine w/o needing to use an engine flush.
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.
I suggest a couple changes with this oil then switch to XL or Signature. This is a great choice should you buy a used car with over 150K on the odometer or that vehicle you really don’t know the history.
LOWER Cost than the XL Line!!
See the Product Data Bulletin for full details.
Product code : HM020QT-EA
Buy & Check PriceAnd Container SizeBuy in the Omaha AMSOIL Dealer shop on 84th St, or use this Online link to the Amsoil sale page if you are outside of the area.
ENGINE CLEANLINESS
- Enhanced detergency to breathe new life into dirty engines.
- Removes deposit buildup to help restore peak performance.
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.
- Significant restoration of piston ring performance
LEAK PROTECTION
- Conditions seals to help prevent leaks.
- High quality sweller additives.
API LICENSED
- Licensed by the American Petroleum Institute (API) to meet and exceed requirements commonly found in owner’s manuals.
AMSOIL High-Mileage Synthetic Customer Testimonials
0/20 high mileage
By RICHARD, a Verified Buyer on August 03, 2025
Never had an oil that made the car feel different after you changed it. Awesome.
Outstanding
By CHRISTOPHER, a Verified Buyer on August 06, 2025
I have a 2018 Subaru Impreza. I was starting to get bad gas mileage around 145,000 miles. I switched over from using OEM oil and filter to using a wix xp filter with this oil and my gas mileage went back up significantly. Also, my engine sounds like it is idling more fluently and quietly again. I can’t say enough good about this product, I will be a life long AMSOIL customer.
Great Oil!
By Kenroe, a Verified Buyer from Missouri on July 25, 2025
My 2019 Acura RDX with 132000 miles started running real smooth and quiet after I started using this oil!
Oil
By MIKe, a Verified Buyer from California on July 11, 2025
My daughter’s car runs smoother and little quieter always have had awesome experience with amsoil
Amsoil Products
By KEVIN, a Verified Buyer from NC on July 08, 2025
I 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
Great oil
By JOSH, a Verified Buyer from Ocean NJ on July 03, 2025
Feels like my trucks run smoother after switching from mobil1. 2010 Toyota Tacoma with 150,000 miles and 2006 Toyota Landcruiser with 190,000 miles.
Amazing Oil
By WALI, a Verified Buyer from Reading, PA on July 27, 2025
Amsoil oil and products is a brand name you can trust! I’ve been using Amsoil for years in all my vehicles and never once did it let me down. If you love your car or truck or off-road vehicle, use Amsoil, it’s worth every penny!


