Customer Ratings & Reviews

I use this in all for vehicles I own for the last 20 years. My V10 Motor Home, my Hemi SUV, my V-6 convertible beach cruiser and my classic convertible street rod. Extremely versatile and has never let me down.

I've been using amsoil 35 years, I believe it's what gave me 450000 miles on on a 77 Porsche. Today I used it in my 18 Kia soul turbo and 16 Kia turbo koup, read the specs it's the best oil for any application.

This is the only oil I use in all of my vehicles.

My engine has 245,000 miles on it, (second engine in the car) and I have used Amsoil for about 2 years. I recently had an oil analysis by Blackstone Labs, and they told me that the wear I had represented about 5,800 miles, but I had actually 22,600 miles on that oil change!! I could have run until 25,000 miles, so next time I will.

Great product

Amsoil is the only well we use in our cars. Are even got my family and some of my friends to switch

My vehicles never run better. I like the convenience of changing my oil once a year.

Great oil

I have been in the automotive industry for 45 years and have seen all kinds of oil and lubricants. Many claim amazing things. My personal experience with Amsoil has been long term. First my race bike. Nothing compared to the performance of Amsoil. Runs cooler, lasts longer, overall good results. My truck now has 343000 miles. Still does not use any oil. My Harley picked up 3 miles/gallon and runs cooler.

Just recently changed my C6 Corvette to Amsoil. Looking for cooler operating temps and the reduction of lifter noise on cold starts. Took a 200 mile trip ran about the same temps as my previous synthetic oil. Engine seems a little quieter with cold starts. The cruising season is just getting started her in Ohio. The true test will be when I track the car at some of our clubs autocross races and high speed events. Two other friends have witnessed improvements with this product and switched based on their recommendations. They both race frequently and push their Vettes to the limit without any issues.

Bought a Ram pick-up with the 6.4 hemi. Needed some oil and found this product. Been using synthetic oil in all of my vehicles. First time using amsoil, I believe it will work for all my needs. Very pleased with the product and will continue to purchase. Once I use my supply up for the wife's vehicle, I will buy amsoil for her car also.

seems to be working good. I put a 100,000 miles a year on. does not keep engine as clean as redline. lots of varnish from amsoil at the 100,000 mile mark. redline at a 100,000 looks just like knew inside the engine.

I use this in a 2003 Chevy pickup I like being able to change once a year. My brother uses the same oil in a 2004 GMC at 130,000 the engine was taking a quart of oil every 2,000 miles. The first fill with Amsoil Signature 5/30 at around 6,000 miles the engine dropped oil consumption to almost nothing. The engine would use a quart after that about every 10,000 miles. He changed oil every 12,000 or so and the engine finally gave up with 285,000 miles

I started using it in 2009 on my 1999 F150 with 75,000 miles. I put about 10,000 to 12,000 mile on the oil per year. I now have over 162,000. When I look thru the oil fill opening the cam shaft looks new and I see no signs of sludge or wear.

I started using this oil many years ago. When first bought it I used your oil filter and oil I put in my Ford 150 pickup truck 2002. I left in my truck for 6 weeks and drained the OIl and put in new filter and oil this cleaned the inside of my motor now the oil stays very clean. I now have over 363,000 miles on my truck still running strong

Best synthetic on the market. It's the only thing I use in my truck.

I always say that if Amsoil don't know how to make Synthetic Oil NO ONE does.. Because they have been the first since 1972..

Use for my car

Super impressed with all The Amsoil products. Extebdes oil change intervals makes it a no-brainer. vehicle Vehicle runs so much smoother, better gas mileage, it's a win-win

Great products