Customer Ratings & Reviews

Since the Signature Series oil has gotten progressive more expensive, the XL line is a more reasonable alternative that won’t break the bank.

Been using Amsoil in everything I own for 15 years. Never had a mechanical failure yet !!

I have found XL to be a great value alternative to Signature Series, if you change your oil every 6 months, or 5-7k miles. I am satisfied with the performance and protection for my maintenance schedules.

Outstanding oil, I am getting better gas mileage and more power while I trailer my side by side. Going up hills and driving on the highways is a breeze now. I have a 2018 Chevy Silverado 1500 with the 6.2 L engine. I have been using Amsoil for over 15 years and I won't use any other oil. I think Amsoil is a great product and saves me money in the long run. Thanks Amoil.

This is the only oil I have used in my pickup, since I bought it new in 2014. What a difference starting on a cold Wisconsin winter morning.

I use this in a F-150 Ford pickup and have since I bought it 7 years ago. I average 12,000 or less miles annually with this truck and it runs like a new engine. When I pull heavy loads it runs smoothly and quietly.

The convenience to be member of the Amsoil VIP, the great quality of the product have helped protect my SUV for at least the last 100k miles from the 300k it has. I will keep getting this product to keep protecting the engine and other components of my truck with Amsoil!

I was using 5W-30 and using the Amsoil site learned the correct weight for my Ford Focus. About to turn a 100k miles I hope it helps me protect this engine as the one on the previous one that has 335k miles and it was my daily and tracked from time to time. Sorry it died on a wrong turn, but the engine and drive train ready to be transplanted on the next body for explicit track use only.

Protects my vehicles. Also the only oil I run in my Harleys.

This is the second time I use this oil since last year; so far it works good it doesn’t get dark as fast as other brands. My motor sounds a lot quiet. I love this oil

Very good synthetic oil if you don’t need the top of the line Signature Series.

The old Truck is running smooth, have to treat well with the liquid gold and give her a tall pour cheers

I`ve been using this product first on my HD and later on my Edge with now 81k. Very little con consumption, drained oil on visual inspection shows no signs of metal. I am also like the fact one can go 10/12k miles before changing, saving time and maybe some $ on the long run.

Awesome oil! Keeping my 2.7 ecoboost f-150 running great

Been using this stuff for about 15 years and never had a problem. Engines that I have had to go through and re-seal with 300,000+ miles always look pretty clean over people who put whatever on sale in thier vehichles. Ive always recommended it, and as long as it keeps showing me that it goes above and beyond ill keep overpaying for it!

I'm the second owner of a 2009 GMC with a 6 liter motor. It has 290,000 miles on and runs spot on. Previous owner was running this oil prior to me purchasing and I took his suggestion on not changing. Knock on wood, plan at least another 100K out of it. I change oil every 5,000 miles or so. Great stuff.

It is a great oil I use Amsoil in every I own

This oil is a very good oil, changed from Mobile 1 and not going back, need a real synthetic oil. Replaced oil for Honda Accord and you can tell the difference right away stopped engine clicking immediately and runs smoothly.

Oil is still clear after 6000km

I use this in my rock crawler Jeep and have never had an issue. I can tell the difference in the Jeep's performance when I use Amsoil which is the only thing I use now.