AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil
ASLQT (ASLQT-CA)
Quart Bottle
Case of 12
AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil
ASL1G (ASL1G-EA)
Gallon Jug
Each
AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil
ASL1G (ASL1G-CA)
Gallon Jug
Case of 4
AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil
ASL55 (ASL55-EA)
55 Gallon Drum
Each
AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil
ASL27 (ASL27-EA)
275 Gallon Tote
Each
AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil
AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil
5 star rating
Based on 6,845 reviews
5 star rating
Pretty free flowing
By 
EDWARD, 
a 
Verified Buyer 
on 
March 18, 2026
Oil pours well from the bottle into the engine.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Works well for me
By 
JEREL, 
a 
Verified Buyer 
on 
March 17, 2026
I’ve been using AMSOIL in all my vehicles for about 30 years and have never any issues with the engines, so as far as I’m concerned, it does an excellent job.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Great choice
By 
ADBIED D, 
a 
Verified Buyer 
from 
Chicago  
on 
March 17, 2026
By 
MARTY, 
a 
Verified Buyer 
on 
March 16, 2026
Second round of using in my wife’s Caddy CT6. The bundle option was very convenient. I’ll begin using in my Silverado soon. Old Product looked great coming out of pan (like we could’ve gotten another 3k miles out of it).
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Highly Recommend.!!
By 
VICTOR, 
a 
Verified Buyer 
on 
March 15, 2026
AMSOIL stands out for its quality and reliability. It’s a premium product that delivers exactly what it promises. If you want better engine protection and longer oil life, I highly recommend AMSOIL.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Ams oil products
By 
RONNIE, 
a 
Verified Buyer 
from 
La Veta co 
on 
March 15, 2026
No matter what product I use of ams oil, they always deliver and never let me down.
I've used this oil for a few years in all four of my family's Subarus. All have the same 2.5L H4 engine, are 2014, 2015 models with between 80 and 140K miles. I change twice a year at around 5K miles. I know the Amsoil folks claim this oil is good for lots more miles, but we drive short trips and so I change it more often. I add less than 1 qt. between changes, so oil consumption is low for such high mile engines. All engines start, run and drive very smoothly and quietly. I definitely recommend this product!
My daughter purchased a used Alfa Romeo Stelvio. I'm not sure what oil was in it to begin with but we had to had oil at least once in a 5000 mile interval. We have been using the Amsoil ever since and have never had to add between changes, still at 5000 miles.
Ive been using amsoil for years, from racing ATVs, Drag cars, daily drivers, ect. Member for awhile. I try to convince everyone to switch. Never had a single complaint. Ships always fast and customer service has never done me wrong.... just buy it already, its worth the nickels and dimes.
This review is not about the best oil ever.
Rather, it is a recommendation that when ordering off the web site, one should have thee option to repeat any of thee previous orders and /or mix and match from previous orders into one order.
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