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AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil

Product code : ALMQT-EA

5 star rating Read 5,589 reviews

Customer Rating

5

89% would recommend

  • 5 5427
  • 4 113
  • 3 22
  • 2 8
  • 1 19

AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil

5 star rating Based on 5,589 reviews
  • 5 star rating
    Excellent Product
    By  DARREN,  a  Verified Buyer  on  November 06, 2024
    Used on all 3 of my wife’s current/previous cars. All have been Ecoboosts that she would put on average 25k/year on in South MS heat. Last two cars made it 100-150k without any issues and always a clean engine and valvetrain with this oil at every 5k interval. Current 2023 2.0 bronco sport has 38k, quite valvetrain and smooth running as always.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Love this oil
    By  SHAWN,  a  Verified Buyer  from  Sacramento, CA  on  November 06, 2024
    I’ve used AmsOil now for just over a year. I have 4 vehicles, and going forward will only be using AmsOil products in all vehicles.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Good price and performance
    By  SAILESH,  a  Verified Buyer  from  Sacramento, CA  on  November 05, 2024
    The price is good and the quality and shipping is great. Using on a 2005 gmc Yukon Denali with 208000 miles. So far everything is working good. Drove about 3000 miles with the new oil.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Quieter / Smoother
    By  ROBERT,  a  Verified Buyer  from  Whitaker, PA, USA  on  November 05, 2024
    Have been using oil for couple years car is quieter at idle speed and runs smoother.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    2014 Equinox
    By  Jnv,  a  Verified Buyer  on  November 05, 2024
    New to me Equinox 150k. Seems to run smother.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best quality oil for your engine
    By  SAM,  a  Verified Buyer  from  Nebraska   on  November 04, 2024
    I like how they have the proof behind all of their products and that to a consumer adds trust and value knowing that it truly is protecting their engine in their vehicle
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best Oil Ever!
    By  DELORES,  a  Verified Buyer  from  Watauga, Texas  on  November 04, 2024
    I have used the synthetic oil in my autos since - a long time ago! I wouldn't use any other oil in my auto.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Viscosity
    By  STAN,  a  Verified Buyer  from  Florida  on  November 04, 2024
    This is a great oil. I am still working out the needed viscosity for my build. This was the recommendation from the Amsoil Tech department and is a great choice! I will be testing the 5W-50 soon and may go with that one for the more oil pressure registering on the gauge.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Product Use
    By  ED,  a  Verified Buyer  from  Texas  on  November 03, 2024
    Great product - service is excellent. Very easy to order and very fast deliveries.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Just Great Oil
    By  MIKE,  a  Verified Buyer  from  Round Rock, TX  on  November 02, 2024
    It’s just great oil!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Hi Milage Elantra
    By  SHELDON,  a  Verified Buyer  from  Home  on  November 02, 2024
    2007 Hyundai Elantra. Original engine. 400,908 miles. Have been using Amsoil Signature Full Synthetic 5w-20 for three years now. I like this oil.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Oil change kit
    By  MICHAEL,  a  Verified Buyer  from  Chicago  on  November 02, 2024
    I was happy to see that my order was shipped quickly ad arrived earlier that promised. The order was complete and came with a useful pair of gloves and a disposable funnel. The oil should be as reliable as advertised and my only doubts are about the filters. The oil filters looked like cheap knock offs to be honest.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    ron
    By  RONALD,  a  Verified Buyer  from  RYE BROOK  on  November 01, 2024
    always use amsoil, it is the best oil for my car
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Immediate Improvement
    By  THOM,  a  Verified Buyer  from  NH  on  October 31, 2024
    Had oil and filter changed from Ford Synthetic to AMSOIL. Engine ran smoother by the time I got home (3/4 mi). Went to event 2hrs away next morning. Round trip (4 hrs) saw 2mpg improvement. Phase 1, crankcase, is done. Phase 2: transmission, transfer case, and differentials next. Lastly: coolant, power steering and brake fluids.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    This is the Standard
    By  JERRY,  a  Verified Buyer  from  Ohio  on  October 31, 2024
    Ok, long term review, one of my vehicles is a 2007 Tahoe (5.3L), I started using the Signature Series about 100,000 miles ago after the vehicle already had 150,000 miles on it. Upon the first change I noticed a difference in oil pressure, the dreaded GM cylinder shut off system and lasting longer between changes. It's still running well after 260,000 miles and I have hope for many more miles. I only wish I had started sooner with this product.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best oil!
    By  CARL,  a  Verified Buyer  from  FL  on  October 31, 2024
    Great oil, easy fast shipping.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    The best
    By  RYAN,  a  Verified Buyer  from  NY  on  October 30, 2024
    It’s a great kit. The 1 gallon containers are great compared to the competitors 5quart. Everything you need with one click. I just started using AMSOIL in my truck this year after using Mobile1 for years. It’s a bit pricey but it’s piece of mind knowing your using the industry best in your engines. I’ve also started using it in Briggs&Stratton home standby generators as the air cooled models can run very hot.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Synthetic 0W-20 - Outstanding Oil
    By  ALEX,  a  Verified Buyer  from  IL  on  October 29, 2024
    This oil is the best! Vehicle runs great and oil packaging is perfect.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best oil hand down
    By  Jp,  a  Verified Buyer  from  Dfw  on  October 29, 2024
    I switched to amsoil after I spun a rod bearing. Right off the bat I noticed lowed oil temps when driving around using the same weight as the past stuff. The car idles smoother than before.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best products ever
    By  STEVEN,  a  Verified Buyer  on  October 29, 2024
    Been using amsoil for many years. Far superior to anything else on the market. Signature motor oils will help your engine run cooler and last longer.
    Bottom Line
    Yes, I would recommend this to a friend.
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