Customer Ratings & Reviews

My RAM takes 5-20 but being an old hot rodder I decided to try a lower viscosity in the winter to see what, if any, difference it made. I know it's a little better flowing on cold starts but was worried about engine protection. My oil pressure was normal and my engine wasn't a bit noisy so I ran it until the weather started warming up here in Va. I am beginning to believe that ANBY Amsoil is great!

Great oil and delivery

My uncle has over 500000 miles original engine on his Tundra, the same results I seen from my customers who used AMSOIL on their vehicles when I was a auto tech. I started my Toyota Sienna SE on signature series full synthetic, I noticed results right away, smoother running. With perfect preventative maintenance and amsoil I plan on taking my Sienna over 500000. Starting my brand new Camry on AMSOIL right away.

Amsoil ONLY FOR MY LINCOLN! I noticed more pep since my first oil change, I take my car and cruise to 110 feels great!!! motor runs smoother and quieter.

Great stuff

I have been using Amsoil for many years now and I wouldn't use any other oil. My SUV does not require this quality of motor oil but using it brings peace of mind whether is very cold or very hot outside. The peace of mind is because I know from personal experience that it will never fail me and protects my engine whether its a very cold start or driving in extreme weather of any kind. Thanks Amsoil.

Very good engine oil. Prevents engine knock on cold startup.

My gas mileage went down to 19 from 22.5. I’m driving 2012 Subaru Impreza 2.0.

My vehicle usually drives a total of 24 miles a day (12 miles to and from work) and it is a decent amount of stop and go driving. One thing I have noticed is that my Jeep (Liberty with the 3.7) seems to idle a bit smoother when it is colder. The biggest thing I have noticed, is how much less evaporative loss this oil has. Previously, I was using Mobil 1 high mileage in 5w-30 and running the exact same route. After a week or so of driving, the oil filler cap would be coated in moisture and foamy oil (not due to a head gasket leak, the coolant reservoir has no oil and it doesn't leak coolant). I would give it adequate time to warm up before driving as well. This was during the winter, but in the summer/ spring, there would be a decent amount of buildup as well. I took the cap off yesterday and there is very little moisture or foamy oil (it was colder last week, but now Michigan is finally warming up). Overall, great performance on this oil.

Always this brand for 2013 Buick Enclave and has 171,xxx kms on it. Always runs like purr and no leaks.. Highly recommended

I am very happy with amsoil I've been using about 50 Years

Just buy the best and you'll be sold don't waste your time and money on anything else

Best on the market! Greatly extends the interval between our changes while maintaining superior performance and lubrication properties.

I use this oil for the track day (Summer) season when my car will be out more often and driven harder. After a summer of tracking my Camaro 1LE, I changed my oil and sent a sample of the used oil to Blackstone Labs for testing. They came back with results commenting that "Our testes concluded that your engine is in extremely great health considering your usage and mileage (45,000miles). Your 3,000mile oil changes are also a factor in your engine's internal health." Hands down the only oil I use for my car.

I've used many leading brands of oil, and have used their highest quality products, such as Mobil 1 Annual Protection and Pennzoil Ultra Platinum. It's difficult to measure wear protection without legitimate testing, but I can definitely say that Amsoil Signature Series burns off less than any other oil I've ever used.

Engine runs very smooth! Great product.

I purchased Amsoil Synthetic oils after some extensive research. I’m happy to say that my new CX5 Turbo is running smoother then ever. It will definitely be the only oil I will use from now on. It’s a little more expensive but worth it.

I was recommended by a friend to try amsoil and gave it a try and all i can say is it is amazing. keeps my car running and performing how it should. I definitely recommend to anyone who wants to protect there car and keep it running as it should!

I never thought you would be able to feel and hear the difference. We now run this in all our vehicles as well as our friends and families auto's. Most recently we changed oil in our company box truck and you can hear the difference in the engine. She's runs smooth now with less noise. The adage you get what you pay for truly applies here. I will never use any other oil now. I highly recommend Amsoil!

I've been using this in my C7 Z06 and love it. All track days and daily drives. Just the right mix.