Customer Ratings & Reviews

Put it n my mustang and works amazingly!

Excellent product!

I have to say its is the best I ever used, but I want to have the oil tested to what is going on in my cars engine, as I said my car is running smoother than ever I still think it beats all other oils.

I put a 5/30 in my 2016 eco diesel. It's the best oil on the market for that Ram

My engine runs quiet with this oil compared to the recommend viscosity for my vehicle oil consumption is also down ..

Replaces the OEM oil from Ford in my GT350R. Have read Great Reviews.

HAVE BEEN USING THIS OIL SINCE IT FORST CAME OUT CHANGE OIL AND FILTER YEARLY OR 12,000 MILES WHICH EVER COMES FIRST

This is the only oil I use-and always will..........................

Used in my wife's 2017 Ram 2500. Switched a year ago and noticed increased mpg. Great product!

Use n every vehicle I have for many years. Great products

Use this in my daughters honda civic she loves the once a year oil changes

I use Amsoil Signature Series oil exclusively in my 2007 Expedition and my 2010 F150. Love the protection and improved performance in both vehicles.

Great product....great protection.

I love this oil. I will be using this oil on my wife's vehicle next oil change. The only thing I don't like is I need to add 1 to 2 quarts of oil before the next the oil change. Over all LOVE it.

I use AMSOIL products---particularly oils in every vehicle that I have owned since 1968! This is an excellent product. I have never had a hitch or failure using ANY of the products. All my relatives and friends are convinced converts! It is comforting not to have any worry about your lubricants, regardless of their use.

Awesome product

Love the product. Vehicle runs cooler and sounds quieter.

Great product

I switched to Amsoil full synthetic after experiencing some sluggish cold weather starts using the competitors conventional oil. Now I have quicker cold weather starts and great warm weather protection. I have not only switched my trucks to Amsoil but also my boat and four wheelers.

Fantastic product. I use it in my Ridgeline. I opened the oil cap just to look around, the inside of the engine looked new even with over 100,000 miles. Never uses a drop.