Customer Ratings & Reviews

Have been using this product in our 2007 Tahoe with a 5.3, and my 2012 Chev. 2500 with a 6.0 liter gas engine. Very particular about everything, Watch for new leaks, old seeps, consumption, color, smell, everything. Tahoe has 80,000 miles, PU has 60,000 miles. Tahoe has had a slight seepage around rear main area and also had started using a quart of oil in 3,800 miles after every oil change at about 30,000 miles. Since switching to AMSOIL, seepage has just about completely stopped, and consumption has slowed to approx. 1/2 quart at 3,800 miles after about a year and a half of usage and 3 oil changes at 4,000 miles. Hoping for continued improvement with time and miles. PU has never used a drop or leaked a drop between changes. Have always used Valvoline products prior to trying AMSOIL. Still watching results and hoping for the best. Also put 50 wt. SYN. AMSOIL in my '80 diesel truck transmission and saw easier, faster shifting, and less noise. No leaks.

Only one complaint, it now takes longer for my car's heater to heat up. This makes sense because the engine is only being heated by combustion and not by combustion and friction. Great Product

Using this oil in all my autos with 15,000 mile filter. Saving me lots of money.

I run this product in my 10 honda crv. Has roughly 90,000mi currently and drove 23,000mi last year. I never burn/ consume oil. Never an issue with the vehicle. This oil doesn't run as well in every application but for my daily driver it's great

Fully synthetic oil, sometimes what you get is not fully synthetic from other manufacturers, but is labeled as such due to a rating process which I don't fully understand. Regardless, you get what you pay for here and then some. I use this oil in both of our Jeeps and have full confidence in the warranty Amsoil supplies.

What is not good about amsoil product? I use amsiol in everything I own.

I love the OE Amsoil products. I use the OE 5W-30 in both of my GM vehicles, a 2001 Silverado with 256k miles and a 2011 Cadillac with 96k miles. I love the feeling of protecting my engine with quality oil.

I've used XL oil for years because of the miles I put on my truck, even the shop is amazed at the engines condition after 150K, so I started with OE on my wife's suv with 120K miles & it seems to run smoother then ever.

This oil goes in a 1995 dodge 4x4 sport half ton that see's a lot of off roading I changed it at 3500 mile intervals along with oil filter and air filter the oil look new this truck has 130000 miles on it it's being passed on to my grandson hopefully another 130000 miles great product