Customer Ratings & Reviews

I believe synthetic oils are great for any moving metal parts. No wear, No friction, saves money in years to come and makes my engines very dependable. My Pontiac now has over 260,000 miles and uses no oil, no smoke. Thanks to Amsoil!

Have just switched to Amsoil for my truck, so too early to review. I will say, though, that cold weather (-25c) starts are a breeze. If it performs as well as in my bike, it will be my go to oil.

I have a nearly 600hp 03 mustang cobra. Based on the used oil analysis I've done over the past 3 yrs, I've gone almost 6000 miles one interval and the oil didn't shear. I don't know if this makes the 0w-30 SS an outstanding oil vs other off the shelf oils, but I do know that high horsepower applications pls e greater stress on motor oils. So extract from my review, what you wish.

Not much to say. I have relied on Amsoil synthetic motor oil for 15 years now and have not had a single oil related failure in either of my vehicles, including one having a catastrophic oil leak (more like a hemorrhage) that emptied the oil pan, after which I drove 10 miles to a repair shop without damage to the engine.

If you were looking for the best you've found it! As simple as that!

5 star

I use this product in all my cars and motorcycles .I also use their filters but sometimes I use K&N also.

Great oil wouldn't use anything else

I've been a loyal Amsoil user these past 25 years. Love the long life of the products and the exceptional protection. True lay a company and products you can trust your vehicles to.

I will use no other, regularly get 15 - 20 K between changes in my Honda Civic

I've been using Amsoil for my 2012 RAM 1500 since day one. This oil is great no issues and as of now I'm 70,000 miles in. Oil is changed annually which is approximately 14,000 per change haven't had any issues. Motor still runs strong and solid. I look at it like this if I can invest over $30,000 into a vehicle I can invest $100 in an oil change yearly which is still cheaper than the every 3,000 miles conventional oil changes that our so common. I stand by this brand and their products.

I run this oil in my 2.7 Ecoboost. Since it is a turbocharged engine, I know it is protected with this oil.

I've been using Amsoil for over 25 years! I use 0-30 Signature Series in my 2011 Subaru OutBack since the first oil change! 175,000 miles now & still Purring like a Kitten! Also running in my wife's new Xfinity Q60L !

Great stuff...pour it in and don't look back

Excellent product, improves gas mileage and reduces engine wear.

Great product, I use it in all my car's.

Amsoil is the only oil that I purchase, I said purchase be cause I don't use oil (or burn oil) in1994 a friend had a cat engine in his over the road tractor trailer rig, He had 1.2 Million miles on it and a cam follower broke on the valves so he had to pull the hole front end down to replace the cam. He told the shop to go ahead and do a in frame overhaul so they mike all the parts, and they were all at Factory specs. that's when I be came a Amsoil customer. I Have It in my Truck, Car, Harley, Quads, lawnmower, power washer. Boat, and Chain saw. I wont use any thing else. It wont break down with Heat. Curtis T. Sherwood

I use signature series for all my vehicles. It saves me time & money. I only have to change my oils once a year with the 25000 mile or 12 months.

I have been using the Amsoil Signature series oil for over 15 years in my vehicles. Living in the northern part of Alberta, Canada and travelling even further north numerous times of the year made this one of the best decisions I made. For hours of highway speeds and the sometimes (especially in the winter months) at extreme low temperatures this is the only oil that has given me the confidence and reliability I have ever encountered.

I started using Amsoil in high school in 1974, because math teacher was a distributor. I have used it every since. Best oil on the market! I have used almost eight products so far.