AMSOIL 5W-20 100% Synthetic High-Mileage Motor Oil

AMSOIL 5W-20 100% Synth. High-Mil. Motor Oil

Preventive maintenance that includes high-quality lubricants is key for keeping vehicles safe and dependable for the long haul. AMSOIL 5W-20  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.

Check Price or Buy

Product code : HM520QT-EA

Buy in the Sioux Falls AMSOIL store at 47073 98th St (Exit 73 near TEA) or use this Online link to the Amsoil sale page if you are outside of the area.

Engine Cleanliness thanks to our High Mileage Oil Line

  • Enhanced detergency to breathe new life into dirty engines.
  • Removes deposit buildup to help restore peak performance.

Cleaning Requires a Durable Viscosity

  • High Mileage 5W-20 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! Yes – no other competitor uses a QUALITY additive for this because it eats profits

  • High Mileage 5W-20 Conditions seals to help prevent leaks. – Even the Signature Series is famous for reduced leaks

API Licensed so you don’t have to be worried about whatever

  • Licensed by the American Petroleum Institute (API) to meet and exceed requirements commonly found in owner’s manuals.


Motor Oil Comparison Chart – Compare the purpose of AMSOIL Products for your best choice.

Amsoil's High Mileage Oil cleans up deposits more!Slides from AMSOIL anniversary High Mileage Oils


In Review 5W-20 High Mileage Synthetic:

  • 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