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

Product code : HM520QT-EA

4.9 star rating
Read 104 reviews
Read 104 reviews

  • 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.

Product Overview

AMSOIL 5W-20 100% 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.
Technical Specification

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

SDS

Data Bulletin

Warranty



Product Reviews

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

4.9 star rating
Based on 104 reviews
Based on 104 reviews
See all customer reviews
  • 5 star rating
    Amsoil # 1
    By  Ronnie,  a  Verified Buyer  from  Tn.  on  July 05, 2024
    When I discover Amsoil and did research on the oil there is no other synthetic oil on the market that has the motor protection as Amsoil ! Thanks
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 4 star rating
    Ok So Far
    By  WARREN,  a  Verified Buyer  from  Texas  on  June 30, 2024
    Its really too early to give an evaulation of this new product, as it has not been in this engine long enough to tell much. While I have used amsoil for many years and believe it to be among the best of the synthetics, its does not seem to change much in the performance of the 5VZFE in this truck. I am wondering why the high performance filter is not spec with this oil.
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  • 5 star rating
    Good Stuff
    By  wolfman,  a  Verified Buyer  from  Summerville SC  on  June 27, 2024
    Been using this in a 2002 Tundra. Doesnt burn a drop/. At 10K the oil still is straw colored not worn out/ I usually replace at 8 to 10 K. No problems for the last 50K.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 4 star rating
    New life
    By  NEAL,  a  Verified Buyer  from  Saskatoon sk  on  June 10, 2024
    Friends love it. cars sound better run better. They are very impressed!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Motor is smooth
    By  CURT,  a  Verified Buyer  from  NH  on  June 08, 2024
    Decided to try Amsoil over my go to royal purple. I am super impressed! No more valve chatter at idle
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Never too late
    By  CHIP,  a  Verified Buyer  from  De.  on  June 03, 2024
    I've used Amsoil for years with unbelievable results. My 2007 Triumph motor cycle is getting close to 100K miles and the valves, which call for valve adjustments at 7000, still doesn't need any valve adjustments. Now I just bought a 05 Tahoe, and changed the oil as soon as I got it. I just wish it had a steady diet of Amsoil through it's life. And now I have to hope this High milage formula will make it so it runs for many years to come.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Just Switched to Amsoil
    By  MARK,  a  Verified Buyer  from  Illinois   on  June 02, 2024
    Just switched to this oil for my 2 high mileage vehicles. Online ordering was easy with quick delivery. Unfortunately no historical data yet though I have high expectations from good reviews and great product.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Just Switched to Amsoil
    By  MARK,  a  Verified Buyer  from  Illinois   on  June 02, 2024
    Just switched to this oil for my 2 high mileage vehicles. Online ordering was easy with quick delivery. Unfortunately no historical data yet though I have high expectations from good reviews and great product.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    High Mileage
    By  MTP,  a  Verified Buyer  from  NC  on  May 30, 2024
    03 Sequoia, 287500 miles and counting. She purrs like a kitten !
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great product
    By  ALAN,  a  Verified Buyer  from  Texas  on  May 26, 2024
    Been using this type oil on all my cars. Including GT350 Shelby Cobra. I change it every 10,000 miles with still visible oil color. Well worth it.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?