Was just wondering if putting Amsoil Motorcycle Synthetic 20-50 in a 2002 Grizzly would create to much crank case pressure and cause leaks??????

Thanks

 

Using that weight oil may not protect the top end of your engine and may cause your wet clutch to slip if it has modifiers. The Yamalube-4 is really the best oil to use.

 

Hey,
I'm new to the atv world but i do run amsoil in my mustang and found a link to check out. http://www.amsoil.com/products/aff.html If it doesn't work then just go to www.amsoil.com and click on the atv. They have a 0w-40 oil that is friction modifier free. Hope this helps. They do alot of motorcycle and sponsor a snowcross series too. Hope this helps.