Customer Ratings & Reviews

I've used this product for about a year now and the intervals between oil changes continue to grow. I use my trucks gauge to see when it is needed. First couple of times I didn't really notice a difference. Now I'm on my fourth oil change and it has really made a big difference in the mileage between the last change. Great product. Keep it coming.

I started using Amsoil in my '84 Volvo at around 150,000 miles. I drive the car about 70 miles a day, hard use. I spend far less time doing oil changes and I almost never have to add oil.

Ok, I am an Amsoil customer for life... Seriously! In February when it was still wicked cold here in Maine, I was having some engine starting and idling problems with my SUV when the overnight temperatures were 15F and colder. The engine would default to a safe "limp home" mode, and I was facing some expensive engine overhaul costs. My mechanic was very sure the symptoms had to do with dirty cam phasers. He suggested using Amsoil Engine and Transmission Flush to clean the engine (including the cam phasers) and switch to Amsoil Signature Series Synthetic Oil. I followed his advice and the results have been AMAZING! After the treatment I have had zero starting problems. And even better, the rattling sound that I thought was the water pump turned out to be the timing chain... no more noise! The Amsoil Engine Flush and motor oil solved both problems and they have given my 135K mile engine new life. I plan to treat all of my vehicles with these Amsoil products, and that includes the transmissions as well. If that wasn't reason enough to use Amsoil products, when I made my first purchase I decided to register as an Amsoil Preferred Customer. I saved much, much more than the registration fee over the cost of Amsoil products at the local auto parts store on that first purchase alone. Engine problem solved and low prices equal CUSTOMER FOR LIFE!! Thanks Amsoil!

car, truck, motorcycle & snow blower and lawn mower

I had heard about Amsoil and reviewed their data and wondered how much was real and how much is just advertising. Then I bought a new truck and thought to myself that I'm really going to have to take care of this thing because I probably wouldn't be able to buy another one in this lifetime due to cost and old age. If the data I had seen was accurate than Amsoil was the direction I needed to go for protection. I used the factory oil for 4900 miles then made the switch to Amsoil. So far I'm very pleased. Most notably with the fuel economy. I've gained 1.5 to 2.0 MPG in highway driving. That to me is impressive. I'm sold.

I would not purchase it if I did not think it was the best product out there. thanks

I have full confidence in Amsoil motor oil. SInce I change oil more frequently and the price of the Signature Series has become extremely high, I find the XL series to be a better bargain.

I have 3cars (one older corvette), 1 truck, 1 boat, and one Harley Davidson. I use Amsoil in all of them. My last truck I traded in had over 300,000 miles on it. Dealer commented "wow , this truck still runs great". all my vehicles run quiet with very little mechanical problems due to engine wear. I wouldn't think of using any other oil in my vehicles.

I use this oil on my 17 camaro ss and by far the best oil I've used! I put it in all of my 5 cars now and I wouldn't use any other brand from now on.

Love this product! My 200,000 plus mile Grand Cherokee is still going strong and getting 19 mpg. If your concerned about the added cost, don't be, with the extended change intervals you will save money in the long run! I will be changing my new wrangler to Amsoil as soon as it need fluid changes.

My pony car and h d scooters perform the best and run the coolest

Best Oil I have ever used, and if you don't believe me read the specs. Best service and tech savvy.

Car runs smooth and quietly. You can feel the difference. I recommend Amsoil to all I meet.

I use this product on a Chevy truck and a GMC truck both trucks run great and smooth and i do believe this oil helps with fuel economy

This product is used in my wife's 2010 Toyota Sienna. We use the EA filters from Amsoil and change the oil and filter every six months. During that time she puts about 6,000 to 7,000 miles on the vehicle and we use essentially no oil during that time period. I might have to add a 1/2 quart toward the end of the mileage period. I wouldn't have any other product in her vehicle or mine for that matter.

I have enjoyed using Amsoil products over the past year and just used this one for the first time in my daughters Jeep. I enjoy the convenience of having the oil and filters delivered to my home so everything I need is there for when I'm ready to do the maintenance myself. The product and customer service is top notch.

I've amsoil been using this product for years and years to come.

Perfect for my snowblower

I use it in my cars, diesel motorhome ,motorcycles,truck,lawn mower,chainsaw,power washer,snow blower ,rear engine dragster,and leaf blower

So far I've used 0w-20 on my 2010 Corolla and noticed the mpg returned close to when I first bought the car. For the past year or so, I've been losing about 50 miles on a full gas tank...and yes I used different gas stations too, but didn't work. Cost a little more than other brands,but worth the money.