Customer Ratings & Reviews

I have been using AMSOIL Signature Series 5-30 wt oil since my 2012 Subaru Outback was new (changed oil that came with car at 1000 miles). I always change my own oil and filter (AMSOIL) and now have 259,312 miles on the car. I have never touched the engine except to have spark plugs replaced every 50,000 miles or so. I also use AMSOIL Transmission Fluid without transmission problems. I trust the AMSOIL products to be the absolute best available.

simple, easy, efficient timely delivery as always

Upgrading to AMSOIL and the higher viscosity has made a major improvement in performance and making the engine perform more quietly. Ordering was easy and delivery was faster than estimated.

Knowing that I have amzoil in my engine crank case give me a piece of mine

There's not an oil that can beat Amsoil

Holds up better than any synthetic oil ive used so far. Fast and convenient shipping as well!

This 5W-30 weight oil is probably the best I ever used in. My car runs very good on it. I also buy the upper cylinder cleaner for the gas.

This stuff is the best stuff on the market.

I'm on my 3rd oil change with the Signature Series. After 5000 miles, you can still see through it. My oil pressure is up and my oil temp is down. I'll never use anything else.

Do you make oil for lawnmowers?

engine sounds and runs good

I use this oil on all my 3 vehicles. It has reduced Engine Noise and works very well.

I trust my vehicles to Amsoil always, don't be fooled by cheaper synthetic oils.

The best oil money can buy

This has been an excellent product and absolutely no complaints about the product it self. I change my oil every 3k miles it may be a little excessive but I know my motor is in great shape. I plan on using amzoil transmission fluid as well when I hit the 30k mile mork as well.

My wife puts her RAV4 through the paces, hauling horse feed and driving outta town for work and getaways. Amsoil 0W-16 keeps he car protected and running great. We started Amsoil products day 1 and have never looked back.

Well I really love my car, and I really don’t want to buy another one ore have to do expensive engine repairs or replacement. I owned my own auto repair business for many years and stocked and sold Amsoil products.I have used nothing but Amsoil products in all my vehicles for about two decades. Never disappointed. From drag strip to everyday drivers. Just as an example my 95 Chevy Suburban over 250,000 miles on engine, transmission, transfer case, and differentials. No problems or repairs needed

Being old school, heavy on the "old", I was nervous about using an oil as light as 0W-16 but Amsoil has never let me down and I don't expect they will. I'll check back in in 300000 kms.

Only use AMSOIL in all family cars.

I trust and use nothing but ams oil in everything from my lawnmower compressor and all out cars