Skip to Main Content
Shop by Vehicle
Open full size product AMSOIL 10W-30 100% Synthetic High-Mileage Motor Oil
Roll over image to zoom in
Roll over image to zoom in

AMSOIL 10W-30 100% Synthetic High-Mileage Motor Oil

Product code : HM1030QTC-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



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

Data Bulletin

Warranty



AMSOIL 10W-30 100% Synthetic High-Mileage Motor Oil

  • 5 star rating
    Great oil. Only use Amsoil
    By  SCOTT,  a  Verified Buyer  from  Charleston SC   on  February 14, 2025
    I only use Amsoil my prior 2000 Ford Expedition went $366,000 MI on the original engine it was never opened or ever touched. It was running fine when we sold it we no longer needed a four-wheel drive expedition in South Carolina.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    282000 mile 4.7 V8 Toyota Sequoia
    By  Emmett,  a  Verified Buyer  from  NC  on  February 13, 2025
    This 4.7 V8 with 282,000 miles runs like a top. But it’s even better with 5W-30 100% synthetic high mileage oil.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Best oil
    By  VINCENT,  a  Verified Buyer  from  Texas  on  February 11, 2025
    Best oil I have used for my daily driver. Engine runs very smooth. 4.3 liter vortec with 254k on it
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great
    By  CHRIS,  a  Verified Buyer  on  February 11, 2025
    Best on the market
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great
    By  CHRIS,  a  Verified Buyer  on  February 11, 2025
    Great product
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 4 star rating
    It is in the car now we will see
    By  TREVOR,  a  Verified Buyer  from  Northern Michigan  on  February 07, 2025
    Well the car has 180,000 on it so I decided to go high mileage. Oil and filter are done so now we wait and see.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great oil
    By  ADAM,  a  Verified Buyer  from  Indiana  on  February 04, 2025
    I've been using this oil in my truck for the last year. I have noticed a big difference when towing the racecar. Even after 5000 miles oil still looks fresh. Engine has been running smoother since switching to Amsoil. I use Amsoil not only in my daily drivers but also in my racecar. Great products.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    High Mileage Oil is legit. Helps with my oil burning 2az-fe
    By  Bob,  a  Verified Buyer  on  February 03, 2025
    It’s helped slow down the oil burning issues with the 2az-fe engine. Never got a recall for this engine from Toyota and been meticulously checking the oil more often than most drivers do. Have used various brands like Mobil 1 to the cheap Quaker State conventional oil to monitor my oil burning problems. This product definitely slows it down. Been ordering it consistently since introduction by AMSOIL. Was using Signature Series prior to this and it didn’t help with the oil burning issues as much as this one. I still do oil changes every 3K just because of the oil burning issues. Oil is inexpensive compared to a freezed engine with no oil in it or blown engine with no oil in it. It’s worth it. Currently almost 260K miles on this badly designed engine!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Would recommend
    By  DERICK,  a  Verified Buyer  from  Kentucky  on  February 02, 2025
    This is the best engine oil on the market. Much better performance using this product. Unless something else comes out better, I will be a lifelong customer.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Good quality
    By  JEREMY,  a  Verified Buyer  from  Illinois  on  February 01, 2025
    Good price, highly recommend for any high mileage vehicles to know this oil will protect your engine, especially during cold climates
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?