AMSOIL Signature Series 10W-30 100% Synthetic Motor Oil
ATMQT (ATMQT-CA)
Quart Bottle
Case of 12
AMSOIL Signature Series 10W-30 100% Synthetic Motor Oil
ATM1G (ATM1G-EA)
Gallon Jug
Each
AMSOIL Signature Series 10W-30 100% Synthetic Motor Oil
ATM1G (ATM1G-CA)
Gallon Jug
Case of 4
AMSOIL Signature Series 10W-30 100% Synthetic Motor Oil
ATM55 (ATM55-EA)
55 Gallon Drum
Each
AMSOIL Signature Series 10W-30 100% Synthetic Motor Oil
ATM27 (ATM27-EA)
275 Gallon Tote
Each
AMSOIL Signature Series 10W-30 100% Synthetic Motor Oil
AMSOIL Signature Series 10W-30 100% Synthetic Motor Oil
5 star rating
Based on 6,861 reviews
5 star rating
Lexus Turbo
By 
ROBERT, 
a 
Verified Buyer 
from 
St. Augustine Florida  
on 
October 20, 2025
I did the first oil change in my buddies new Lexus at 500 miles for the break in service. I will update this review at 3,500 miles at the next oil change service.
Manufacturer calls for 0W-20. 5W-30 just feels better for my hot climate. My 6.2 purrs as quiet as a mouse (If you ignore the growl of the Flowmasters)
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
AMSOIL Products
By 
DAVID, 
a 
Verified Buyer 
on 
October 17, 2025
I continue to use AMSOIL products, because they are excellent. Also, they ship their items extremely fast. The quality of the products far outweigh the cost.
Well, oil is oil, so there is not much to say about the oil. Now the bottle is worth talking about. The wide mouth on it meant I didn't spill any oil while pouring it into the engine.
My order arrived very quickly, which is a plus these days. I have been having issues with parts arriving promptly.
I was never a believer in AMSOIL because of its price. Other oils met all of f the required specifications and were much cheaper. Reluctantly I decided to give AMSOIL a try. I’m liked the fact that it had the weight( 0w30) which I wanted. I love ve in a state with brutal winters, and I figured since AMSOIL had a lower pour point then many other oils, and had touted lubricity and superior protection, that I would at least give it a try. I noticed immediately after start up that a clatter that has always occurred for a second at start up in the top end of the engine( even when brand new) was gone. No other oil has ever caused this quiteness to be achieved. I’ve only ran the AMSOIL about 200 miles now, but that start up flatter is gone and the entire engine runs much smoother then ever before. I will continue to use AMSOIL from now on. My car only has 60,000 miles on it, but I wish that I would have used AMSOIL from the start. I do believe so far that it really does provide superior lubrication. Winter hasn’t arrived yet, with it brutal-30 temperatures, but I feel much better knowing that my car has a whole new level of protection then ever before.
As a retired mechanic myself, I've used Amsoil products in all my vehicles for decades now, including this 0w20 Signature Series product in my pickup and my wife's vehicle.
Love the instant oil pressure visible on the gauges during extreme cold winter weather, as we're not always able to plug the vehicles in. Had over 300k on my wife's vehicle when we sold it to get a larger vehicle, and it still ran as good as the day we bought it, over a decade ago.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
4 star rating
Free Shipping
By 
SCOTT, 
a 
Verified Buyer 
on 
October 13, 2025
I did not receive free shipping on my order. I plan to use you guys in the future but don't appreciate the extra 9.99 ship fee after becoming a member...I'd like the shipping cost refunded.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Amsoil 5w-30
By 
MIKE, 
a 
Verified Buyer 
from 
long beach 
on 
October 13, 2025
great product! Love how the jugs are 4 quarts. My car takes 8qts so it works out. Will definitely purchase again
My 08 4 Runner just reached 200k. I have been using Amsoil since 2010 and my vehicle is running like new! I just finished changing all my fluids with AmsOil and considering its service interval, it has saved me a lot of money.
By 
TOBY, 
a 
Verified Buyer 
on 
October 11, 2025
Noticeable difference in the greater smoothness of the engine over Mobil 1.
I sent a oil sample for analysis when doing at the last oil change and all numbers came back great! Would highly recommend!
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