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AMSOIL Extended-Life 10W-40 100% Synthetic Motor Oil

Product code : XLOQT-EA

5 star rating
Read 1,209 reviews
Read 1,209 reviews

  • 37% more cleaning power1 to help keep your engine running smoother, longer.
  • Protects against LSPI
  • 20,000 miles of guaranteed protection between changes2

1Compared to AMSOIL OE Synthetic Motor Oil.
2Normal Service – Up to 20,000 miles (32,000 km) or one year, whichever comes first, in personal vehicles not operating under severe service.

Product Overview

AMSOIL Extended-Life 10W-40 100% Synthetic Motor Oil



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AMSOIL Extended-Life 100% Synthetic Motor Oil is overbuilt for road warriors so you can confidently drive up to 20,000 miles or one year,2 whichever comes first, between oil changes. A proprietary combination of advanced synthetic base oils and a boosted additive package promotes cleanliness and prolonged engine life. AMSOIL Extended-Life protection delivers peace of mind and convenience.

See the Product Data Bulletin for full details. 

RESISTS OIL BREAKDOWN

  • Maintains viscosity under the most extreme conditions.
  • Reduces excessive oil consumption, engine deposits, accelerated wear and difficult cold starts.

PROTECTS PISTONS FROM LOW-SPEED PRE-IGNITION

  • Features unique chemistry proven to protect your engine against harmful effects of low-speed pre-ignition (LSPI).

KEEPS ENGINES CLEAN

  • Fortified with detergent and dispersant additives.
  • Boosted additive package effectively neutralizes acids and resists sludge, corrosion and carbon deposits.

REDUCES MAINTAINENCE

  • Outstanding protection benefits motorists, business owners and fleet managers.
  • Extended-drain intervals reduce expensive, time-consuming and inconvenient oil changes.
  • Extended drain intervals up to 20,000 miles or one year,2 if you choose, allowing you to change oil on your schedule, reduce maintenance, save money and reduce waste oil.
Technical Specification

AMSOIL Extended-Life 10W-40 100% Synthetic Motor Oil

Data Bulletin

Warranty

SDS



Product Reviews

AMSOIL Extended-Life 10W-40 100% Synthetic Motor Oil

5 star rating
Based on 1,209 reviews
Based on 1,209 reviews
See all customer reviews
  • 5 star rating
    Oil
    By  MARK,  a  Verified Buyer  on  December 05, 2023
    Good
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great stuff
    By  WILLIAM,  a  Verified Buyer  from  Long Island,NY  on  December 05, 2023
    I’ve been using Amsoil products for over 45 years. I use it in my vehicles (SUV’s), boats ,motorcycle and even in stuff like generators and power washers. I’ve been amazed by not only the improvement in performance but more so by how clean it keeps the inside of every engine. Keep up the good job Amsoil !
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best oil hands down
    By  ANDY,  a  Verified Buyer  from  Miami  on  December 03, 2023
    I’ve been using this oil for about 2 years now and I have no complaints. I have a rotary engine so oil is even more important in our engines. Will not use any other brand
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    First Oil Change to early to tell
    By  DENNIS,  a  Verified Buyer  from  Tiger,Georgia  on  December 02, 2023
    Just changed over to Amsoil with a brand new 2023 Chevy Blazer W/ V6 power. Blazer had 4044 miles at first oil change. To early to give a review. But the shipping was timely.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Amsoil Extended Life Motor Oil
    By  Bernie,  a  Verified Buyer  from  Tucson  on  November 30, 2023
    I’ve been using Amsoil products in my vehicles for years, 1st time trying Extended Life. Took a recent round trip to Texas around 2k miles, checked the oil, the vehicle didn’t consume and looked clean (transparent).
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Oil change.
    By  Robert,  a  Verified Buyer  from  FL  on  November 12, 2023
    Oils still holding level and almost as clean as original at change. Even getting better fuel mileage. Says a lot for a heavy expidition with a 5.4 L.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Milage
    By  Robert,  a  Verified Buyer  from  FL  on  November 12, 2023
    Firt time I used 20k formula. I changed the regular at 8k plus.. the vehicle told me when. I am excited to see how the car reacts to the 20 k. The oil was nearly as clean as when I put it in.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great oil
    By  CHRIS,  a  Verified Buyer  from  CA  on  November 11, 2023
    Used in a buddies 90’s GTR. He said they lose some oil pressure once they get warmed up so he wanted to try the 40WT. So far he says it’s better and quieted the engine down
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Top quality
    By  RAMMY,  a  Verified Buyer  from  Texas   on  November 05, 2023
    I’ve been using it for some time and have had nothing but great results in our cars. Best on the market. Trust nothing else !
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    works great
    By  GARY,  a  Verified Buyer  from  dauphin island  on  November 04, 2023
    using it in my 1956 3100 chevy with chevy 350
    Bottom Line
    Yes, I would recommend this to a friend.
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