My shop sells motul and polaris synthetic premix oils. My friend ran the motul and it created alot of spooge and he had to rejet all over again for it. I ran polaris oil in my last bike and never had slooge problems and im running it on my new bike now with no problems. But over on another forum they're saying that its meant as an injector oil and that it will seperate and cause damage. That doesnt make any sense to me seeing as how most injector oils say right on the back that you should just mix a bit leaner for premix applications. On the polaris bottle it says meant for all 2 stroke applications with variable exhaust systems and nothing about sleds or injectors.