Great product, great salesman, Ross Shasteen.

Great product. Car feels much better, I can tell the difference.

Using it in my 1979 Camaro Track Car built primarily for Road Course use. Running a NA 350 dyno tuned at 480 HP/ 470 TQ which is getting run hard to 6500 RPM constantly. Holding up with great oil pressure , minimal wear and consumption. I use strictly all Amsoil fluids in the car and would highly recommend Dominator Racing Oil for the serious racer or builder.

Very good , notice bike performing better in lower rpm’s , she sounds better and shifts better and when the oil is almost burned it feels like it has more life in it compared to the regular 10w40 metric they offer. Definitely recommend the dominator my bike is a 2014 zx10r btw

Have a heavily built N/A K20/24 swapped Civic Sedan and I was previously running Valvoline VR1 20W-50. A lot of my buddies kept telling me about Amsoil, but I always balked because of the price. After doing some research, I finally pulled the trigger and bought some for an oil change, and now I don’t think I’ll use anything but Amsoil Dominator 15W-50 in the car. It’s tuned on Ethanol (E85) and I’ve noticed less issues with the Amsoil, better throttle response, and quieter valves. Only about 150 miles in, but I really like what I’ve seen thus far!

Good prices and great oil.

Off the bat I will say that this oil is the best dang oil I have ever used in my High HP engines. It is the only oil that doesn't get beat to death by the engine. Also, having said that, it is the only oil that quieted the valve train too!! Its like a smooth sewing machine. My hot rod gets this oil ONLY, NO ACCEPTIONS. It runs smooth as silk and I have no issues AT ALL! AMSOIL certainly knows fluids on all levels. In my High Performance 1972 Monte Carlo (completely rebuilt by me and my life long friend, known as the "Magical Maestro Car Gnome") has all AMSOIL product in the vehicle, gear oil, transmission fluid and of course the 15W50. I am completely amazed how well their fluids works. Once I run out of bearing grease, I will begin to use that too, among more of their other wonderful products. It may cost a tad more, but I rest easy knowing my vehicles are well protected with this wonder fluid. So its well worth it and it lasts longer! if you have a heavy hitter, High HP vehicle like me, then this stuff is it! Don't even wait another second, just order it for your beast in the garage. YOU WILL BE PLEASED! Yours truly, Dan

This is the oil I use in my high compression 565 big block chevy for track days. This is definitely the oil to go with if you want to protect your race car while you beat on it going down the track.

It's oil, seems to work well. First time using it so we'll see how it holds up. But it's Amsoil, so I'm pretty confident it will be fine.

Recently made some changes to my 532ci. BBF and was going to replace the rod bearings while having it apart. After 3 seasons of 200’ mud drag racing, the bearings still looked new. Ended up putting them back in and looking forward to another race season, thanks to Amsoil Dominator Racing oil!

Always have been using this oil for the Subaru since I bought it! Great product!

Been using this for years and it's protection is unsurpassed

Have been using Amsoil 15-50 since I resurrected a 1992 mustang LX with. 5.0 stock motor for 3 years on various road race courses (Mid Ohio, NCM, Ozarks, Pitt raceway, Gingerman, etc with NASA. Superb lune and engine remains rock solid and pulls strong running at 6200 rpm changing oil after every 2 race weekends

Best oil to use. I use it on my motorcycle and never had a problem with the motor. I would recommend it to everyone

Great oil. No issues been using it for 7 + years. Perfect for how the engine is built to have good oil pressure at idle.

This is the only oil I will ever use on my 70 roadrunner motor runs cooler stronger, warms up faster better all positives

This is all I’ll use! When you have thousands dumped into a high horsepower build with with very tight specs and tolerances, I come to AMSOIL for my oil needs. The high content of phosphorous and zinc also help protect the investment. Oil is crucial to any build, no sense in going with anything but the best!

Keeping my race car running high RPMs with confidence. I have been using 15-50 for 2 years since engine rebuild. No pinging, oil pressure holding strong.

I have used Dominator race oil in my dirt track car for the last 10 years, I never had an oil related part failure or any excessive wear on any parts. My engine builder said what I’m using keep using it works.

Change it every 1,000-1,500 miles for my turbo LS daily driver.