Customer Ratings & Reviews

Pro Atv Desert racer been running 20-50 now for the last 8yrs changing the oil after 2 races which average a couple hundred miles each and a few hrs of brutal punishment and harsh Arizona desert summer temps I replace the cylinder and piston at the end of Every season after over a 1000 miles and over a hundred total hrs in a season the piston and cylinder look as if they did when I installed them, the last 8yrs I have not had any engine failures of any sort and it's because of AMSOIL synthetics. I've seen so many guys I race with blow there engines time and time again during the season and they continue using their own preferences of oils and still have issues. I have so much confidence in AMSOIL when going racing that engine failures don't even cross my mind.........thank you AMSOIL for your continued sponsorship support and your hard work put in by your R&D department.......It's paying off....."!!!!!

Great oil

I used this in my BMW motorcycle and have to say, it is a very good oil from what I can tell. 4K miles since the oil change and it still shifts smoothly. That has never happened before I used 20W-50. Overall, the bike runs very well on this stuff. Will be buying it again

Used this for years great product