Customer Ratings & Reviews

This is a great oil for people who drive lots of miles. it also cuts Maintenace time because of its long life. It also offers great engine protection.

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I use both this oil and the 10/30 and they are both excellent with great support!!!

my engine is a little quiet than usually is after oil change

merci

Open test data, highest confidence that this is the best oil available.

Very good oil. My old engine runs very good and the fuel milage increased.

won't use anything else

I'm using Amsoil SS 5W-30 in all my Volkswagens! There feeling of the engine is apparent from start-up to hard acceleration with a 2.0L turbo gas motor. I only use the best oil for everything, no compromise. Amsoil SS 5W-30 will keep your engine safe and clean.

Oil delivered fast and good. Thank you very much

Best oil money can buy!

Amsoil is the best product out there I have been using it in everything I own. Shipping is super fast and very friendly people

Usually everything goes well and deliveries are within 3 business days which is awesome, but I have been waiting for my order now for two weeks and no sign of it, had to cancel service on vehicle because order was a no show, no tracking number to check on status just that the order was shipped. We don't live that far away so I am not happy and very disappointed.

I’ve trusted it for 15 or more years and use everything from the gun oil to break in oil

Everything runs smoother, cleaner and longer. Years of Amsoil products especially the oil specifically has been proven to me over the years.

I've been using this oil in my motor home for years. I go across country and for me it seems like this oil will go go quite a bit longer than others.. I seem to get about a 1/2 a mile per gallon more I've tried other oils and they just don't seem the same..

There is a reviewer online called "Project Farm" who I respect very much. He did a really scientific test on motor oils and AMSOIL Signature Synthetic absolutely dominated the competition against all the other motor oils. I have bought two new cars, a Honda Accord Hybrid Touring and a Toyota Tacoma 4runner Premium. My strategy is to own reliable vehicles, use AMSOIL's Signature Series oil and have a meticulous maintenance schedule. I Believe, following this plan, my cars will outlive me.

Used this stuff on my Nissan 350Z and I've been using this stuff for years. Definitely, recommend.

Oil samples always come back great

The engine runs smoother at startup and cooler at the track then the 10W-60 recommended by the manufacturer.