Customer Ratings & Reviews

Works great in my suv. Lubricants very well

110 degree heat in the summer, record breaking cold in the winter and this stuff just keeps working. 300,000 and 250,000 miles on my two Toyota 4.0l engines and no leaks or mechanical issues. No further proof required.

car doesn't get driven a lot so from a standby mode it seems to start with minimum valve clatter

I've used Amsoil products for 20 years , motor oil , gear lube , ATF +4 , Ethanol treatment and Miracle Wash spray detailer , never had an ill experience , I'd recommend a membership for steep discounts and free shipping!!!

If you're looking into trying this product, just do so and experience it for yourself.

Best oil available on the market.

I've used Amsoil for at least 25 years. Also Used Amsoil in Fire Department Fleet, City of Glen Cove Volunteer Fire Department, it has proven to be a superior product.

This is a fantastic product! I have used it in my Toyota Camry since it's odometer read 71,000; now it reads more than 300,000!! I wouldn't use any other oil!

This is a great product that I use in my wife's Honda Civic!

Agin if you have a jeep wrangler with the 4.0 v6 if it’s still going you should be running signature series.This Jeep is pushing 180,000 still running strong thanks to the oil!

If you own a Chevrolet truck and don’t want lifter issues look no further.My truck is a 2007 first owner.Mostly garage kept not once have I had a motor issue 5.3 v8 I have Amsoil to keep it going!

One years ago I used Royal Purple sintético oil and change at AMSOIL Signature Serie it is the best the best 2008 Toyota tundra running like new car I recommend this oil 100%

Signature series 10w30 works great at a great price. I use it in my 2000 Jeep Cherokee Sport . My Cherokee has 190K miles on it and still goin strong no valve tick that is common on these vehicles. Highly recommend this oil.

I use Signature 5w30 regularly and am very satisfied with its performance. Definitely recommend it.

This OW20 oil has performed great in my 2007 Honda Element. It’s got over145,000 miles on it. I change the oil every 20,000 miles. It still looks great when I drain it. Great stuff!!!

Used to for the first oil change for a rebuilt engine. It sounds so much quieter and power has increased!

I’ve gone past 10K with this and no issues. Not sure I want to really test the 25K limit but I take their word for it. Great product.

I run this in our 2010 Jeep liberty ,with different oil brands I noticed I would have to top off the oil before 3,000 with Amsoil I can run 10,000 now and the level holds true.

i have a 2022 Sentra i bought new ..The best mpg i could get was 37-39,,until i switched to AMSOIL!!!! I am amazed now I am getting 41--44 mpg. And the very best I've got was 45.3 MPG .. It's amazing so now all my vehicles get it.

This signature series motor oil has let me extend my interval in between oil changes and I likethe detergent in it that keeps my engine protected and running smooth.