Reviews of AMS engine oil

I've used both royal purple and ams. As long as you use oem oil filter, you'll get great results. I feel like I got better temps with ams under load but it's not by much.

I use AMS, 3 different oils. I find they reduce primary, engine and transmission noise, compared to syn3 in all 3 holes.

AMS oil with OEM filter after 4k change oil still looks new

Thats why i use AMS oil. 0w-16. Even higher specs then toyota or nissan( nissan uses a Japanese company)

My yz250 runs phenomenal on ams dominator, but if I can’t get to a place that sells that I run the VP brand 2 stroke oil. It’s a pretty good alternative