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

Product code : ALMQT-EA

5 star rating Read 6,863 reviews

Customer Rating

5

90% would recommend

  • 5 6679
  • 4 130
  • 3 24
  • 2 9
  • 1 21

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

5 star rating Based on 6,863 reviews
  • 5 star rating
    Review of AMSOIL
    By  Peter,  a  Verified Buyer  from  Texas  on  April 18, 2024
    I have been using AMSOIL since about 1978. Never had a failure or a reason to complain. Using it now in my two monstermobiles: My Shelby Cobra, and my Toyota Scion Xb.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    The best motor oil you can buy
    By  TOM,  a  Verified Buyer  from  Illinois  on  April 18, 2024
    I've been using this oil for years. Nothing compares to Amsoil.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Signature Series Motor Oil
    By  Jim,  a  Verified Buyer  from  Oregon  on  April 17, 2024
    I have been using Signature Series motor oils in all of my vehicles for 30 years or more. My only complaint has been that it took my 68 Chevy C-10 about twice as far before it would warm up to full operating temperature! My engines stay clean, even though I only change my oil in April of each year.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Working great in a modified Hemi 5.7
    By  SolarGarage,  a  Verified Buyer  from  Charlotte  on  April 17, 2024
    Working great in a modified and supercharged Hemi 5.7L. We switched over to AMSOiL 0W-40 after the initial break in and plan to continue with AMSOiL 0w-40 in this application.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Amsoil 5W-20
    By  ROGER,  a  Verified Buyer  from  Wilmington NC  on  April 15, 2024
    Best synthetic oil on the market.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Expensive per quart but cheaper in long run due chg interval
    By  Jon,  a  Verified Buyer  from  Tennessee  on  April 15, 2024
    Used it in motorcycles, tractors, trucks, lawnmowers and cars for 25+ years. Chg interval 1 year or 25k miles on cars and trucks, 200k or above was easily attained, 300 plus on 2 trucks with no engine repairs.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best oil $ can buy. Period!
    By  BEN,  a  Verified Buyer  from  Texas  on  April 15, 2024
    Best of the best
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    FIRST TIME USED AND LOVE IT
    By  EDWARD,  a  Verified Buyer  on  April 15, 2024
    I always used Valvoline Advanced 5W20 since it was brand new. When I tried Amsoil 5W20, the results were immediate. Quieted the engine, nice and smooth now.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Signature Oil
    By  Eric,  a  Verified Buyer  on  April 15, 2024
    I like to keep my vehicles for a long time. Most of my cars have several hundred thousand miles on them. Amsoil's advanced additive package gives me the peace of mind that the cylinder and bearing wear in my engines are minimal. I feel it is extra money well spent.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Made me a believer
    By  IAN,  a  Verified Buyer  from  Los Angeles   on  April 14, 2024
    My previous truck I used the engine flush & rebilt the top end of motor. I was using 5/30 excellent oil. Now I live & die by these products, would recommend to anyone.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    I like this even better
    By  ALFRED,  a  Verified Buyer  from  Lincoln University pa.  on  April 14, 2024
    Was using the OEM switched to the signature 5w30 and noticed a difference wright away ran better gas mileage and ran cooler would highly recommend this oil my choice from now on
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Works well in used motors
    By  TED,  a  Verified Buyer  from  Santa fe  on  April 13, 2024
    Works good
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Seems good so far
    By  SHANNON,  a  Verified Buyer  from  Kcmo  on  April 13, 2024
    Fast shipping, easy to pour, I am nowhere near the 25k mark only about 2500 miles in, so time will tell, not sure if I will go the whole 25k as its against my religion, but I am sure I will get close...
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great oil
    By  RYAN,  a  Verified Buyer  from  Iowa  on  April 13, 2024
    Great oil I use it in most my vehicles and never had an issue with one running it.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Oil
    By  RYAN,  a  Verified Buyer  on  April 13, 2024
    First time trying this product
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Mopar, baby.
    By  BEN,  a  Verified Buyer  from  Southern Illinois  on  April 13, 2024
    Quick shipping, solid American made product. I've been a customer for years. Ram 4x4 hemi.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Efficient!
    By  LEE,  a  Verified Buyer  from  Highland, Ca  on  April 12, 2024
    Order was here quick and correct
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    The only oil I use. Period
    By  Dante,  a  Verified Buyer  from  FL  on  April 12, 2024
    I've been using Amsoil in all my vehicles, boats and off road toys for many years. I truly believe it is the best oil made.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    awesome as usual!
    By  SEAN,  a  Verified Buyer  from  Oak Hill, WV  on  April 12, 2024
    above all expectations with this 0/40 for my Z06 Corvette!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great product
    By  JASON,  a  Verified Buyer  from  NW Ohio  on  April 11, 2024
    Awesome product
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?

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