Has anyone ever ran 2-stroke boat motor oil in their bike? I dont see how are why it would hurt anything. I run the expensive stuff right now but I was curious about boat motor oil. I think half the oil thing is a crock. I mean does anyone actually believe honda oil wont work in yamaha's as good as the yamaha oil. 10 bucks for a quart of oil is crazy. I think I am gonna try the suzuki outboard motor oil. I guess it's all about money I just think it's funny they even make oil for 4x4's.

 

We use exxon 2-stroke in my brothers 80cc dirtbike and the same in my 85hp outboard. Been using it for 5 years now with no problem. In our snowmobiles we use Klotz synthetic. I use the same oil in my 550 jetski and in my 300r. No diff. Outboard motors at full throttle constantly at 5000 or more rpm's are more stressed then a quad that your not holding at full throttle for that long.

84 ATC 300R, 86 ATC 200X

 

Yeah thats what I was thinking. Since you brought the subject up of a boat motor staying full throttle why do you think they last so long. Maybe it's the constant flow of cool water that keeps them alive.

 

Hello I know that the outbord boat oil wont hert your bke but you will notice a differance in performance. I would not take the chance of useing anything but R50 oil in my 1985 250r but that is just me its better to be safe then sorry Good luck Ryan

 

Hey, I tried a new one today- Castrol tts full synthetic and smokeless. The smokeless thing is not just a BS sale gimick it does not smoke ! I was happy with it and its not but 4.75 a quart. Only with a lot of cans of gas can I say its great.

 

I have noticed over the years that many 2 cycle oils are crap, no matter what you are running them in. Stick with a good quality synthetic oil for premix situations..........oil injection systems can get by with a lower quality oil, since the oil has no chance to break down (it never sees gas until its headed for the cylinder).

I have run motorcycle oil in snowmobiles, and snowmobile oil in 4-wheelers, and so on. The only difference I have noticed is, snowmobile oil seems to be a little bit thinner, probably since it is designed to flow at cold temps.