Customer Ratings & Reviews

Better than regular synthetics. With the Preferred Customer discount, it works out to slightly less expensive than the store bought brands.

Use it in everything I own. Great stuuff

I use Amsoil on my 2 cars and my deisel boat. I've never had a reason to question its performance. So far, so good.

This particular viscosity I've only been using for a year in a new car. However, I've been using Amsoil products in everything for probably close to 25 years. My last Jeep Cherokee I bought new and had 268,000 miles before selling it with no engine issues and the previous Jeep closer to 300,000 miles. Same deal, still passing inspection, no engine issues. I also use the compressor oil in 2 large air compressors at work. Both came with there own MFR synthetic oils. After 5 or so years they started seizing on me. I switched to Amsoil and haven't had a problem in either one for close to an additional 6 years now. Nothing but Amsoil.

I run Amsoil in my truck and in a buddies truck. On both vehicles we have seen improved fuel economy and better cold starts. The truck has no issues starting in -30°f and below even when left unplugged over night. I have seen increases all over the board.

I've use this in my '12 ecoboost since the day I bought it. I've have not had the issues others have had with the valves or anything really. I believe it's because I've used only Amsoil's line of products in it.

Excellent product. I've put many miles on my vehicles using Amsoil with no problems. The website is first rate and makes it very easy to select the correct product. The tech support is very informative and knowledgeable. In my opinion, nothing can touch it.

I got a 2014 Fx4 and as soon as I could change to Amsoil I did. I use it in everything I have.

I change oil in my trucks every 5000 miles easy pour from container everyone should use nothing but amsoil prouducts

I put amsoil in everything I own

Great service Great product Great company

I actually forgot about my oil change mileage. I light on the dash told me it was time. Oil came out the same color it went in! Had to be around 6,000 miles. Very impressed! Love it!

I use this oil in all my cars, it's cheaper than in stores with preferred customer membership, quality product and protects my vehicles for years now.

I use amsoil in all my vehicles , commute 200 miles a day , using only the best oils keep my cars going.

Years ago I use to race & rebuild our engines. Rod bearings and piston rings would wear and need to be replaced quite often. Once I converted to 100% synthetic Amsoil oil I could run a full season on the same bearings and piston rings, savings in $$ and time replacing rings and bearings. Virtually NO wear on moving parts. This proved to me how valuable the oil is and I now run 100% synthetic Amsoil in all my internal combustion engines.

No down time

I don't quite drive enough to utilize the full drain interval of this product. I do run the product for the calendar year. The oil remand stable and clean from visual inspection. I have total confidence in this product.

I've had it in my truck for awhile now. Checked the oil, it's still like new

I purchase this for all of my customers who are skeptical of AMSOIL. I tell them to compare to MOBIL1 when they do their 3k or 5k mile oil change. The color is always lighter than MOBIL1 in all the cars I have tested!

Best oil on planet. Even there OE series is better the any other brands full synthetic.