Customer Ratings & Reviews

Bought a '88 iroc and wanted to start the process of changing the fluids to the best I could get and Amsoil is the best in my opinion. I use all the fluids in my bike from amsoil and I found a big difference. Specially since its a '92 Harley that's air cooled.

Mon moteur ronronne tres bien avec la signature

High quality and last a long time. Change the filter every 3-5K miles and the oil just keeps on going. Internal component problems having to do with lubrication just go away, and the engine is cleaner inside. I change at 15K, but going to 25 has not cause any problems.

I have been using Amsoil Signature Series oil for many years. I believe it is the best synthetic oil made and have great confidence that it provides the best protection for my vehicles.

Great product yes it's pricey but you get what you pay for. No it's not for everyone but I only change my oil once a year so it's worth the extra money knowing that I'm getting the best protection available for my engine.

I was introduced to Amsoil some years ago for my 2007 Chrysler Town and country and I've been using it ever since. I can feel the difference in my ride and the engine runs so much smoothly. I'm very satisfied.

Great oil that increases my Oil enter change intervals to 25,000 miles along with a high mileage filter. Just got back from a round-trip from California to Louisiana and back pulling a dump trailer and never used a drop of oil. Silverado Chevy pickup .

This stuff is good and slippery. I've used it for years in my daily driver and in my sports cars. I've got over 200,000 miles on my daily driver and it still doesn't burn oil. It still runs like a champ. I owe its longevity, I think, to this high quality motor oil. I've never had an issue attributable to oil in my sports cars either. My 911 Porsches loved it and so did my ZR-1 Corvettes and my current C5 Corvette.

I’m a satisfied customer

I noticed an immediate difference in performance when putting this oil in my engine

Have used Amsoil for about 20 plus yrs and never had a failure in any my engines great products would recommend

I will always and continue to use amsoil

Helped reduce the consumption over change cycle also important for the newer higher temp engines

Been using for years. Switched way back from 5w 20 to 10w 30 because with the 5/20 went through a quart every 3 months, after the switch that usage stopped. Best oil on the market and I use it in all my vehicles, truck, car, lawn tractor, and all my boys use it as well. One son was told when his engine was inspected internally that it was the cleanest engine that mechanic had seen in his 25 years of work. We stand behind it 100%, and we tell all the people we know about it. Even some mechanics that have never heard of it, hard to believe, but true, lol...

Good

Good

Amazing oil

Oil is great...

If you are looking for top protection for your second biggest investment. There is no other product that meet your needs better the Signature Series Amsoil. My only choice back by data.

I use this in my 2010 half ton Silverado and my 2011 equinox. Compared to Mobil and other oils I’ve used in the past this one is the best one so far. Quiets up motor noise, solved my engine tick on the truck and lasts a lot longer. So far at a 7,000 mile oil change it looked great. Still waiting on lab analysis. Solid product.