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.
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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.
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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!
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
AJ
By 
AMARJIT, 
a 
Verified Buyer 
on 
October 11, 2025
By 
MICHAEL, 
a 
Verified Buyer 
on 
October 10, 2025
2022 Subaru Outback with 2.5L & 75K.
2 oil changes in with the AMSOIL SS 0W-30. Recommend oil from Subaru is 0W-20. My gas mileage has actually increased by an average of 1/2 mile per gallon & that’s been for approximately 9000 miles. Right now it’s at 29.8 mpg. Was previously running the OEM 0W-20 Subaru oil before switching. Engine is not using any oil with this 0W-30, staying at the full mark between oil changes which is so important with this GDI engine. Was previously using a small amount with the 0W-20 going to halfway down the dipstick between oil changes. Great product!!
I have used Amsoil Signature Series motor of for over twenty years with no major engine problems. Some of the vehicles ran over 150,000 miles with no sludge or oil consumption problems.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Engine oil for mazda cx 9
By 
BIJAY, 
a 
Verified Buyer 
from 
North america 
on 
October 06, 2025
Great brand
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
AMSOIL
By 
JEFFREY, 
a 
Verified Buyer 
from 
Avon Park, Fl 
on 
October 06, 2025
I love this oil and I love the distributor as well orders are secured, and they are shipped quickly to your home or wherever.
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