AMSOIL Signature Series 0W-40 100% Synthetic Motor Oil
AZFQT (AZFQT-CA)
Quart Bottle
Case of 12
AMSOIL Signature Series 0W-40 100% Synthetic Motor Oil
AZF1G (AZF1G-EA)
Gallon Jug
Each
AMSOIL Signature Series 0W-40 100% Synthetic Motor Oil
AZF1G (AZF1G-CA)
Jug
Case of 4
AMSOIL Signature Series 0W-40 100% Synthetic Motor Oil
AZF55 (AZF55-EA)
55 Gallon Drum
Each
AMSOIL Signature Series 0W-40 100% Synthetic Motor Oil
AMSOIL Signature Series 0W-40 100% Synthetic Motor Oil
5 star rating
Based on 6,876 reviews
5 star rating
In Honda direct injection,
By 
JOHN, 
a 
Verified Buyer 
from 
Western Fredonia 
on 
June 17, 2025
My two Honda vehicles love this oil! Runs smooth, and engines seem more efficient as my fuel mpg is now (25.0 mpg). 2024 Honda Ridgeline.
My wife’s 2022 Honda CRV turbo runs incredibly smooth, and is getting 36.0 mpg.
This is the only oil going in our engines.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Signature series
By 
SPENCER, 
a 
Verified Buyer 
on 
June 17, 2025
A friend recommended this for my Toyota tundra. He said it made his engine quieter. I changed to this oil and immediately on start up my engine was noticeably quieter and better protection.
Been using Amsoil Signature Series 0W-20 for Years. When I bought my 2020 Toyota Tacoma new , been using Amsoil Signature every oil change once a year. The weather here in Nevada, in summer it Hot! Hot! Hot! In winter it Cold! Cold! Cold! This oil is outstanding!!!
Currently loving the oil, but have yet to fix oil conception in a GDI engine. Oil dilution is still a part of my life, but I have noticed some improvement. I do wanna try the restore and protect oil from Vavoline, see if it can help, and then switch back to Amsoil.
0W-30 Signature oil really protects, cleans, resists gumming, foaming. My SUV starts quickly even in the most severe cold temperatures yet holds full proper oil pressure at extreme heat. Top quality and MORE than worth every penny per ounce!
My friend is a master Toyota mechanic with over 40 years experience and he started me using Amsoil over 20 years ago and thats the only oil i have used in all my Toyotas since. I have over 300K on my 2002 Tundra and over 150K on my 2014 and they burn very little oil and run like the day i bought them. As far as i’m concerned, Amsoil is far and away the best oil on the market today. It may be a little more expensive, but you get what you pay for.
My 2022 Elantra N has been using this series since day one and I have used other brands on my other vehicles but none for me has done better then Amsoil across the board.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Great on 2025 Land Cruiser
By 
STAN, 
a 
Verified Buyer 
on 
June 13, 2025
Used 6.5 quarts of 0w20 in my 2025 Land Cruiser, it’s been very smooth so far.
I doubt I’m the only one to run this in a Subaru, and it isn’t the most popular choice, but I love how clean this keeps my engine even under boost and my lead foot. Good intervals and the gold standard in synthetic keep my car running strong. It seems to love this oil and that’s good enough for me.
I had a local shop put "synthetic oil" in from a giant barrel. I changed it a mere 1000 miles later with AMSoil and the moment I started the motor it purred... much smoother than mystery oils.
By 
TOMMY, 
a 
Verified Buyer 
from 
New Jersey  
on 
June 11, 2025
Been using AMSOIL for over 10 years in my truck,my 69 Camaro and my HD. Great product and company. Short story. Oil for my 69 camaro. They did a quality test. The oil wasn’t up to there specs(has zinc in it for older muscle cars)didn’t have enough. They sent another order of oil free of charge. They didn’t have to say anything. I would have never known. That’s a stand up company. Oil was over $100,that they sent me. customer for life
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Signature Series 0-20W
By 
STEVEN, 
a 
Verified Buyer 
on 
June 11, 2025
Very good product for turbo engines.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
2019 Colorado
By 
OSCAR, 
a 
Verified Buyer 
from 
Nakusp, BC Canada 
on 
June 10, 2025
I’ve been using amsoil for about 4 years now in my truck and wife’s Jeep and my Harley and I like the fact I only need to change oil once a year.
Will continue to do so.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Motor oil
By 
MICHAEL, 
a 
Verified Buyer 
on 
June 10, 2025
Motor seems to be running better. I think it likes this oil.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Awesome peoduct
By 
LARRY, 
a 
Verified Buyer 
from 
San Jose , CA 
on 
June 10, 2025
Here's a sample review:
4.5/5 Stars
I've been using amsoil motor oil in my corolla 2013 and 2019 prius prime for a while now, and I'm really impressed with its performance. Both engine runs smoother, and I've noticed a significant reduction in noise and vibration. The oil seems to do a great job of keeping my engine clean, and I've had no issues with leaks or spills.
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