Customer Ratings & Reviews

once a year oil changes whats better than that

Have used Amsoil exclusively on all our vehicles! Extreme cold winters do not take its toll as with other products. Of course now we use Amsoil in lawnmowers, leaf blower, snow blower and in our 1973 Deutz farm tractor. We have a lot of $ money in our vehicles and this is our way of protecting our investments !

Great oil. Used in all of my vehicles. Long drain intervals. Will continue to use!

I've been using Amsoil in all my engines. Am certified ASE Technician. I love the 25k oil and filter. Only have to change my oil once a year. I am money ahead for several reasons 1) cost. 2) time. 3) my engine and seals are in better condition with Amsoil. The molucules are consistent size and fit into tight tolerances.

All Signature Series Oils and Ea0 Filters are the very best ever created.

I'm impressed

Great oil. Holds up really well in my turbo Civic - confirmed by UOA.

I use only Amsoil in every engine I own. My F150, the wife's Lincoln, the Harley, The Boss Hoss, My Shelby, My vintage Ford tractor (Z-Rod)The Toro zero turn My 1981 Briggs and Straton edger and anything else that stops by my home.

I have used this oil for 4 years now in my 2005 F150. Each December I change the oil myself and send samples to Blackstone Labs for analysis. Each time it has come back, saying I can extend my oil changes another 5K+ miles because the TBN is great. Has always been over 2. The most I have driven in any 1 year period before changing oil was 14K miles. I'm impressed.

I use it in all my gas powered vehicles

The new formula is working out very well in our ecoboost applications.

As a do it yourself auto maintenance gear head, I value the peace of mind knowing I am using the best oil available for extended drain intervals.

This oil in my truck Hemi 5.7 2017 run perfect !

Only change once a year

Best oil on market use it in all my vehicles for years no issues

20,000 miles on an oil change will get me through for a year so I only have to change my oil once a year. It pays for itself and its less maintenance I have to worry about doing.

Amsoil products are everything Amsoil say they are. They are simply the best and most effective products of their types, regardless whether it's oil, additives, etc... While conventional oils can be good and do what you need it to, they just don't compare to Amsoil synthetic lubricants. They can't. That's the whole reason synthetic lubricants were developed in the first place. When turbine engines were in development, conventional lubricants would completely fail. Engines would literally come apart...catastrophic failure. I've run Amsoil in every car I've had. I change it once a year; reduced waste, superior protection and longevity, lower cost. It's a no-brainer.

Drive 1 hour Clermont to Orlando back and forth every weekday. Already 300,000 miles. My car responds like a new car. There are 5 cars in our household. I had to change oil 4 times a year per car. That was 4x5=20 oil changes. Now I change oil once a year, usually on the same day!

I'v used this oil for over 25 years.

25000 miles with a warranty! Incredible but thanks Amsoil