Customer Ratings & Reviews

This is the at least the second time I've purchased and used this oil in my 2018 Silverado 5.3l engine with over 75,000 miles. To date, I am really satisfied with my purchases using the products from AMSOIL. You should to.

I use this in my 2014 Jeep Wrangler and it's always been great to use

2020 renegaxe 2.4 performed way better just by changing to amsoil. Mpgs went up more reponsive pedal ...will do all our cars with this oil in the furue! Tks

Purchase of high mileage product is in anticipation of next oil change. Anticipate same quality as previously purchased products

I love the signature series, oil and filter that goes with it. However, the filter has been out of stock for several months with no update on when it will return. So I suggest not buying this product until the filter is available.

Great product really works. Also came in perfect timing.

I switched to Amsoil a couple of years ago and all my vehicles run better on it.

I have used amsoil in all my vehicles for quite a few years, I believe it has extended the life of the engines. Great product.

Really high quality pruducts and quick delivery. I'm glad of being Amsoill customer

in all my toys and cars never let me down......totally reliable products

Noticeable improvement compared to other synthetic oil.

My review ,Smoother sounding motor ,knowing I'm doing the best for the motor and the love for my Truck to give it the best

since i have been using Amsoil 5-30 engine oil in my truck i have had no issues with low oil pressure which most garages use a cheap part synthetic motor oil which breaks down fast. So happy to have switched to amsoil great product my cost a bit more but it saves you money over the long haul if you want to keep your engine in top shape. Also my garden tractor would smoke every time you started it up but since i put amsoil small engine oil in no more smoke runs better and doesn’t use any oil. Thanks and i’m spreading the news to everyone i know, keep up the great work customer for life

I have tried many oils for my trucks, including the Royal Highness lol but honestly Amsoil has been the best I currently have 200,000 miles on my 2020 jeep and I truly believe the oil is keeping the engine running stronger then ever. I will continue to run Ams and constantly recommend it

Great stuff

I have been using AMSOIL products for close to 20 years now on all my vehicles (Ford P/U Trucks, Jeeps and Harleys). My vehicles just seem to run better. They run cooler, shift smoother and get better MPG. And when I do an oil change, I get almost every drop back in the used oil catcher. And to make things even better, ordering from the AMSOIL web site is super simple. Easy look-up for your particular vehicle, save your vehicle(s) in the 'Garage' for future use, package deals, and super-fast shipping. I can think of nothing negative to say about the entire experiences that I have with AMSOIL over the many years that I have been using their products and dealing with the company as a whole. THANK YOU!

Great product protection for the engine

If you’re shopping Amsoil, you already know it’s the best oil out there. Easiest customer service to deal with and fastest delivery… AND I didn’t leave the couch to do any of this. Highly recommend anything Amsoil sells.

I’ve used this oil for two years and recently had it tested after 11,000 miles. Testing showed this oil to be in great condition, no metal and chemically still strong.

After intense research on all oils only amsoil finished 1st. Most synthetic motor oil only are 10 to 20% synthetic Amsoil is almost all synthetic over 80 % It stands alone as the best motor oil for your vehicle by far