Amsoil is the best oil I ever used in my vehicles and motorcycle. I got 619,214 miles out of a 1987 Vw gas engine.

The project went very well.... It was thoughtful / Great idea putting disposable gloves 🧤 a paper vunnel & a window sticker.... WONDERFUL 😊

Been using this product for years with excellent results. And when testing has been done Amsoil has always compared very well against other products

I was put on to AMSOIL a number of years ago. They come out on top in the reviews I've seen. The delivery service is good. I've never experienced a engine problem using their products but I do change my oil regularly. One area that I can say AMSOIL products out perform others is in the 2 cycle mix. On others I had to keep rpm up or it would stall with AMSOIL I can set the thing down and it continues to idle and run smooth. I'm thinking 'good in one - good in the other'. Also it seems to keep the combustion area clean. I do have an old tractor on its last leg. I've used other oils and it just doesn't run well, with the AMSOIL diesel products I can still keep it going. I'm thinking AMSOIL is a superior product.

Tks again AmsOil, over 500,000k and still rattling away!

I've used this oil in 3 Mercedes. And have had the used oil tested annually. Always great wear results

I accidentally ordered the wrong weight oil through your website. I went back to your website for return/refund procedure. Your website sent me a CRM number and address to send product to. I shipped it and waited. I waited approximately two weeks for a notification of refund. I didn’t receive anything so I accessed your website again and used your chat service to ask about my refund. The person I was chatting with asked for my tracking number. I told the person I had a CRM number. The person asked me why I had a CRM number? I said that is what your website sent me. How would I know why I was sent a CRM number??? I then gave the person my tracking number. That person then said they’d call the warehouse I sent the product to. The person then said the warehouse called me and I did not answer the phone. I didn’t have a message in my voicemail from them? They called me and did not leave a message so they obviously just gave up. Did not try calling me again or leaving me a voicemail??? So the person found my returned product so they proceeded to give me a refund. They only refunded me 145.00 when I actually paid 200.00. I called customer service back and the person I spoke with talked to your accounting department and found out I paid to much for the product I ordered from your website so the accounting department needed to refund me another 45.00. As I said in the title of the review your product is good but your website order/return process needs a lot of attention! In the near future I need to order more oil, coolant etc. I am questioning whether or not I want to go through the fiasco I went through again! I want to make sure I am paying the proper amount for the product and if I have to return anything I don’t want to go through the same frustration I went through! Phil

Outstanding oil

I leave it 12k miles and still feels better than any other brands at 5k

After many oil analysis , this Mid Saps 5w40 is what the masses are running in the Jeep Ecodiesels. The FS is recommended but after the testing , I have switched to the MS and it is the best oil for these engines.