Customer Ratings & Reviews

I've used this product on my 2014 Jeep Wrangler, I love this oil been using it awhile with no issues what ever

Hard To start very cold day

I use Amsoil oil, and fluids in all of my seven vehicles, from bumper to bumper, witch has cut way down on repair, down time and oil consumption..

Best form of lubrication for any automobile in my opinion.

I use this in my Ram Rebel 1500 and it keeps the truck running smooth.

I live a very cold climate. Temps sometimes get down to -30F with wind chils to -50 or more. My vehicles sit out side all year. I've never had a problem starting them, no mater the temp.

This is my first round of 0W-20 Signature Series for a 2015 Suburban as well as a 2016 Toyota. Paired with AMSOIL EA Filters, I trust the recommendations of the vendor. I've never had an issue whatsoever. Oil consumption using Signature Series 5W-30 on previous vehicles with over of 180K and 207K miles was ZERO. I loved the cold weather start and 1x/year oil changes (avg 17K miles/year).

I use AMSOIL signature series in my new Ford F-150 because the protection is great, the change intervals can be extended if necessary without lubrication properties breaking down. It conveniently shows up at my door via free shipping as a preferred customer.

I use Signature Series 5W-30 in my '98 Subaru (138,000 miles), and it couldn't be happier.

5W20 is for my 2010 Ford Ranger. I run it hard, and the oil does it's job flawlessly. I use AMSOIL on all 5 of my vehicles. I won't buy anything else but AMSOIL.

Amsoil got my business in 1983 when we were running two stroke outboard engines at very high RPM's in a racing format. After one season putting the engine through these conditions we would rebuild the engine. After the year was up the cylinders still had the hone polishing marks visible to the eye on the cylinders. Every gas or diesel engine I have owned since that day runs on Amsoil and only Amsoil. Why would I try anything else. The extended run time only makes it a better product as far as price. You can get this quality at or near the same price as just oil.

Have been using AMSOIL products 4 more than 20yrs. No bone 2 pick. No vehicle I've owned has used oil, excellent performance. Engines, transmissions, manual & automatics, & live drive axles! No problems ever! I will only use AMSIOL! THANX ABUNCH AMSIOL!

I have been using this amsoil in my Jeep JK 2017 since new, and it seems to be preforming well I also have it in front and rear differential.

I have been using high mileage synthetic oil for the last 5 years. When i got my emission chech the technician was confused, he said , ' the engine is running so clean, its like purifying the air' !

I have used this product for 16 years with excellent results. (All around good oil analysis, much lower cost, time saved.) I recommend this oil whenever possible.

This Amsoil Signature Series engine oil is the best I've used. I call it my liquid Gold. I would highly recommend it.

Great as usual.

I have used this in a few autos as well as a 4 cycle toro, superb engine protection, second to none cold weather starting as well as lower operating temps in the hottest days of summer. Very highly recommended! !

My Ranger has 210,300 miles. All original engine except fuel pump. Runs great. Amsoil in engine and tranny since purchase.

I like to keep my car in tip top shape, so I use amsoil.