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 6,863 reviews
5 star rating
Really good oil
By 
ERIC, 
a 
Verified Buyer 
on 
February 15, 2024
I like this brand of oil and I love the fact that I can go longer on an oil change than the standard oil I was buying.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Amsoil products
By 
BRUCE, 
a 
Verified Buyer 
on 
February 15, 2024
I’ve been using Amsoil products for over 20 years and have never been disappointed with their products 5 stars!!!
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Awesome oil
By 
JOHN, 
a 
Verified Buyer 
on 
February 15, 2024
Sound product
Bottom Line
Yes, I would recommend this to a friend.
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1 star rating
No Issue with the product, issue is with customer service
By 
ANTHONY, 
a 
Verified Buyer 
from 
New Jersey 
on 
February 12, 2024
Ordered a case of Oil and qualifies for the promotional products at the time were 2 fast funnels and shops rags if you spend over $100. Promo code for this wasn’t working so I called and asked if they could send the promo items with my order and they said that they couldn’t. Upset I didnt get my free shops towels and fast funnels. Oils is great though just annoyed they couldn’t honor thier promotions.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
The best oil you can buy.
By 
BRIAN, 
a 
Verified Buyer 
on 
February 11, 2024
Amsoil is the best protection you can give your cars engine.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
The best motor oil. Period
By 
ZANE, 
a 
Verified Buyer 
on 
February 11, 2024
Exceptional performance. My car runs nearly silent and hardly consumes any oil at all with this oil. You also save money with the extended drain interval. Will also clean the inside of an engine like nobodys business. No other oil even comes close to the signature series.
Given decades of using Amsoil in many used vehicles with high mileage (BMW 320, Audi 4000S, Nissan 240, Grand Marquis, Chevy Trailblazer, Mazda MPV, Dodge Durango), I changed my wife's new car to Amsoil almost immediately. Those well-worn vehicles never required engine work in my care. I suppose this new Subaru motor might be one of the last combustion engines running when it all goes electric. I don't write reviews as a rule. If someone reads this and wonders if the oil is worth the price and the added steps of ordering through the mail... I am unsure what further testimonial you might need. Worth every penny, new or old vehicle.
Perhaps ironic to many, my truck-- which has its oil changed with Amsoil every June-- was bought out of an auction lot over 10 years ago. Previous vehicles were, too, including BMW 320, Audi 4000S, Nissan 240, Grand Marquis, Chevy Trailblazer, Mazda MPV. Despite older vehicles considered finished by their owners, I would get trouble free years out of them. My current Dodge Durango began life as a rental, so I do not know what the first 60,000mi were like, but the next owner had four different tires on it by the time I purchased it. 125000mi later in my care, the engine has never been rebuilt, never leaked, never burned oil. No surprise that I changed my wife's new car to Amzoil almost immediately. I suppose that Subaru motor might be one of the last combustion engines running when it all goes electric. I don't write reviews as a rule. But if someone reads this and wonders if the oil is worth the price and the added steps of ordering through the mail... I am unsure what further testimonial you might need. Worth every penny, new or old vehicle.
I a 2012 Acura TL, and they are known for their oil consumption failure issue and even though I use this oil it’s still doesn’t seem to help much but I try
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Only the best
By 
MICHAEL, 
a 
Verified Buyer 
from 
High Point, NC 
on 
February 10, 2024
I've always used Mobil 1 and have nothing bad to say about them. I purchased a Jeep and have a job that requires me to drive 180 miles round trip. I've heard about AMSOIL for years and never tried it. Now was the time. I ALWAYS buy the best for my vehicles since it's what gets me to and from work to earn what pays my bills. Here we are and I cannot say anything bad about AMSOIL. Yes, it's more expensive and I cannot say whether it's better than MOBIL 1, but I have the piece of mind that I have the protection I need for repeat, long distance driving. AMSOIL's data says a lot and in detail. Another selling point for me. Buy it not. Take my word or not. Whatever you're putting lubricating products into, you spent hard-earned money on to buy. Why not put the best money can buy into it? No-brainer to me.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
LOVE THIS OIL.
By 
MICHAEL, 
a 
Verified Buyer 
on 
February 09, 2024
I have never had a problem in 20 years getting the product shipped to me in time to change the oil in my vehicles and it consistently over performs. Thank you!
Used on a friend's 2018 Impreza WRX and the wife's 16 CX-9 both of which had notable smoothness improvements and better spool response. Oil has worked as a detergent as well, since use the car has needed less encouraging to accelerate or run in winter.
Always use Amsoil motor oils, transmission products, filters and fuel products. Current vehicle at 292k miles, previous vehicle sold at 297k and I understand that it went past 350k. I intend to use their products until I hit 2 million miles myself.
I actually was told about Amsoil by a friend, one of those nut cases that does too much research into everything. I have an older truck, that I want to take care of so I try to feed it the best stuff I can. Amazon works great, their website is easy, their shipping is fast, their customer service is top-notch.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Stays Clean
By 
DON, 
a 
Verified Buyer 
on 
February 05, 2024
This oil stays cleaner longer and the oil itself doesn't break down. I run the Signature series 0 w 20 oil and the EA Filter. I drain and fill every 15K miles
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Good quality
By 
TOMMY, 
a 
Verified Buyer 
on 
February 05, 2024
This oil does what it says highly recommend this oil to anyone
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