Customer Ratings & Reviews

I have been using Amsoil since purchasing my SRT8 Challenger in 2010. I did a lot of research & went with the first & the best in the synthetic oil business. I started with the regular full synthetic Amsoil & have been using the signature series for about 4-5 years now. I change my oil once a year regardless of mileage. In HP applications especially, why not put in the best there is.

Superior product. Simply the best oil . It stays clean for a very long time. Way better than most other oils .

Superior product. You will be amazed at how clean your oil will stay . It's simply alot better than any other oils out there.

I switched my truck at 165k. The first oil change I burnt through 3 qts (out of 8qts). AMSOIL explained the high level of detergents we’re cleaning my engine. Mind this truck NEVER burns oil, ever. The next oil change 15k later the oil consumption stopped. I wanted AMSOIL for the convenience of 15k change interval. What I happily found was my mpg went up 1.5 mpg, from 15.5 highway to 17mpg. Pulling our trailers mpg went up .5mpg but I haven’t pull extended highway miles yet just 1hr to 2hr jaunts. This past winter the truck sat out in -45F over night multiple nights and fired up right away …. My old synthetic required extended cranking but always started on first try. With AMSOIL it’s instantaneous. We have 4 cars/trucks …. They’re all going 100% AMSOIL. I’m a believer.

I’ve been using this oil for my vehicles for the peace of mind, knowing that the engine is protected far beyond OEM requirements.

My 2004 Ford Expedition 4.6 V8 has 214,000 miles and runs like new as I only use Amsoil. My last 1998 Expedition also had over 200k miles before this one. I would consider this oil free since my gas mileage is increased and I can drive my autos as long as I want. My friends Volvo turbo bearings were rattling and I put about a half of quart of my Amsoil in it and the turbo bearing quit rattling.

Use nothing else. Although their shipping cost is out of control I still order.

Yes I would recommend this to a friend

No oil can compare to Amsoil. I don't cheap out when it comes to what I put in my Lexus. Everything runs so smooth, and feel great knowing my engine is protected using Amsoil. Price is worth, the quality and protection.

Since I switched from Mobil 1 to Amsoil I have noticed that my vehicles run smoother and quieter. It has to be because of the superior oil adherence and lubricity.

Awesome product. Switched my Vette to Amsoil after watching my buddy race his for 2 years without any issues. Superior protection, runs smoother and cooler. Looks cleaner than Mobil 1 after 5k miles. So impressed I switched both my Colorado 4x4 and the Traverse AWD HighCountry to Amsoil.

Been using Amsoil now since 1997. In Everything We Own. It is getting to the Point now that Some other Brands are going to be getting poured into our Vehicles Due Simply to AMSOIL’S PRICING Strategy which is running me and my Customers Elsewhere. This is Quite discouraging because I really like the product. But at $12/13 PER QUART, It’s not cost effective for me to continue down this Path when there are some other Full Synthetic Oils out there that have proven themselves quite worthy at 1/2 the Price. That said. Amsoil is a Great Product and a fantastic lubricant!!! No other complaints from here. Just the Price. It’s outta control!!! Thanks SLEEPY JOE!

I chose this oil with all the tests I saw in my research and I'm not disappointed. The best oil I've had so far!

Superior product with outstanding results.

I wanted the absolute best motor oil for my 2018 Toyota Tundra & 2021 Toyota Tacoma so I looked no further than Amsoil! I like using Amsoil because I’m giving my car the best protection available. You can hear the engine purring and everything sounds so smooth running Amsoil. I run Amsoil on all my vehicles. It gives me peace of mind knowing I’m using the best oil out there! I highly recommend all Amsoil products for whatever you may drive!

This oil is the best in my opinion. The last bottles I got had a older label on the back. I guess they ran out of newer labels. It didn't say it met my trucks latest requirements, but I'm sure it being Amsoil it did.

It is easing to know that my 2017 Ram is only using the top synthetic oil ever since it was purchased new. The ordering and shipping is easy and fast.

Love this oil and the convenience of ordering online and shipped directly to my house.

Some years ago when I worked at Ford in Engineering I had the opportunity to meet a Sales Engineer from Shell oil. I asked him about this new fangled synthetic motor oil. He told me "Ed, its the greatest thing since canned corn". He also told me that at the time Shell didn't even have a product on the market. He also said that because it doesn't break down all you needed to due at oil change time is only change the oil filter and add a quart. You don't need to drain the pan. (Not that I've ever done this). Living in the Florida heat with an 86 Corvette an 83 El Camino and 2012 Cadillac which are all high mileage I use the 5W-50 because I'm sure by now there is a lot of clearance in the rod and main bearings. Good stuff.

Fast shipping and good product