xtreme; i've wrenched on everything from mopeds to nuclear subs and i've never assumed that theory of that oil is ok just leave it in if you can,change it. i run rotella;buy it by the gallon and it costs $2 per change if your that broke you shouldn't be riding. i'll send ya a quart of oil changed out after one HS race and you tell me (us) if you'd put it back into your bike as far as changing oil in baja,where is all your gas coming from? if its stashed then stash oil with it. if there are stations they more than likely have oil also ncmountainman- keep your used oil as your right I wont put it in my bike as I'll just continue to leave the current oil in my bike. What sense would that make for me to go through all the TIME of changing my oil only to put your used oil back in.hehelol Who ever said anything about being broke? I have a brand new bike that I dont get to ride and my official old yz450/now woods bike and I have 2 cases of Klotz synthetic sitting in my garage so again keep your oil. I guess if you call time and broke the same thing then I am time broke as I stated above.lol Where do you supose he put's all of his old oil when he changes it daily and stops for fuel or do you just do what alot do that piss me off ever time I clean up the pits and drain it onto the ground?