Ive been using tractor oil in my 650 for the last year in a half . My mechanic told me to stop doing that so i need to know what oil to run and what additives to look for.[img]i/expressions/face-icon-small-happy.gif[/img]

 

I simply use a good-quality 10W40 oil. You can use synthetic, but regular oil does just fine. I actually change my engine and front diff oil (same viscosity) after every major ride that I go on (equals about every hundred miles). It only takes 3 quarts, and at about a $1.50 per quart, it's cheap preventative maintenance. Sure I could wait longer between changes, but this way I don't have to worry about possibly having small amounts of water in the oil, etc. The Kawasaki-recommended intervals between oil changes is too long for my comfort-level.

 

I use Castrol synthetic 5w/50 with Wix oil filters. If its real hot I use 20w/50.
I have 2K miles of very hard use.

Pull 60 in trail mower
Been to Glamis
Cinders in Flagstaff
mud
race
drag
abuse
OK Little Sahara 10 times
ride every day.

now oil useage at this time.