It all started when I used their double filter system when I used to drive for work 30 years ago. I was putting around 3k miles a month on my vehicle and looking to cut back on oil changes. I've been a fan ever since.

I have used Amsoil for years now and I have never been disappointed,great quality and American company 🇺🇸

I’ve been using Amsoil products for years and I will continue to do so. It is by far the BEST out there. Amsoil outperforms all other oil and oil products out there.

Have been using it for the past 120k miles with no problems.

I have been using amsoil for Years and Years, I don't use any other oil. I use Amsoil for all my Vehicles, including my StreetBike, Lawnmower, 4 wheeler, Pressure Washers, Anything I have that needs oil, Amsoil Goes Into it... 100% Loyal Customer!!

Amsoil is the best. Hands down. I've been researching ways to prolong the lifespan of all my motors. Royal purple isn't even a close second. Do your own research. Amsoil is king. ..... anyways, I was needing quantity, viscosity and oil filter for 2019 dodge ram 1500 5.9l hemi. 7 quarts and a win filter for a little over a hundred bucks, not a bad deal. I change mine every 10k. Premium gas and amsoil and you should get 300k miles outta your engine. We'll see.

great oil I change my oil once a year

Great product with fast shipping

I have been using this oil for over 20 years. Every vehicle I have used it in has never had any problems and it has increased the gas mileage.

I use only Amsoil's best in my high output 2.0 Ford. It puts out 400 HP and turns high rpms. It pays to use only the best.

I put nothing but the best in all of my vehicles, and Amsoil is by far the best. Scott Galbreath an employee of yours, has always been great to me and getting what I order quickly.

I send a sample to Blackstone after 16k miles on an 219k miles Acura tsx. Didn't add a drop of oil in thay time They told me will hold another 10k. Impressive. I have the report in case anyone wants to see it.

Excellent high grade oil

Every time I’ve ordered products from Amsoil it’s been handled perfectly. Everything arrived ship very nicely. No problems at all. Very easy to use the website.

Had this tested at 5k. Results were almost the same as when new. This is good stuff!

I use Amsoil in all my vehicles! After I do an oil change with Amsoil, the engine runs quieter, happier, and healthier! Would recommend to anyone. There is even science behind it! It tests better than other manufacturers!

I've used Amsoil in all my vehicles and never once have had an issue. 200k and climbing on my current one.

Engines run smooth and quiet. Once a year oil changes are perfect with the Signature Series. Customer service is top notch and knowledgeable if you ever need to ask questions. Email responses are always quick. Been using Amsoil in all my vehicles, motorcycles and small engines for 20 years. Noticeable difference and improvement.

Excellent advanced oils I’ve been using for years with no issues and full motor protection in muscle car performance.

What an excellent product! I always want to use the best products for my vehicles and with AMSOIL that is exactly what I got.