Enigne up-keep

[AusTexRex]

I change mine every 1.5-2k miles depending on how the oil level is, the color of the oil, how hard i've been driving it, and if there is any gasoline fumes in it. Since oil in a rotary engine is mostly part of the combustion process it isn't ran through the engine and put back into the pan like it is on a piston, so the oil stays fresh for longer. BUT, oil can clump or when ran through the turbo get junk in it, and throwing that into a rotary engine can be bad. I prefer to change it every 1.5k miles and not worry about it. I only use real oil I don't mess with synthetic, there used to be plastic sand particle in it that were terrible for rotary engines. There aren't anymore... but I still prefer the real stuff.