hi i just got a 89 250r quad what kind of oil do you put in the crankcase

 

welcome! what make is the quad? if you ask this question in the correct section, it will be answered sooner.

 

You said "crankcase" so I am assuming you mean a 4-stroke. But, back in that day there were lots of "250r" 2-storkes around, so I will talk about both. (If you have an 89 Honda 250R 2-stroke that is in good shape, you are golden! If so, see you in the Honda forum!)......

If this is a 2-STROKE, what you are lubing is the TRANSMISSION! (This is NOT the "crankcase". The crankcase gets lubed by the premix you mix in with the gas!) I like one of the transmission specific lubes, like Maxima MTL, Motul Trans Oil, or Honda's HP Trans Oil. You can also however, run a 4-stroke motorcycle engine oil that is API SG/JASO MA.

If a 4-STROKE, run a motorcycle specific oil that is API SG/JASO MA! For an old machine, I would probably run Maixma Premium. (Just so you get even more confused, there are now some 4-strokes (Honda TRX450R, and Honda 450/250/150 dirt bikes...God Bless Honda for this one!!!) that seperate the engine and transmission oils, and in that sense these transmissions have identical lubrication requirements to a 2-stroke trans. The engine side of these machines, still would use a 4-stroke motorcycle oil, preferably a high quality ester synthetic.)

Some essential reading...and why API SG/JASO MA is important:

ThumperFaq: 4-Stroke Oil

Oils Well That Ends Well, Part 1 - Sport Rider Magazine

 

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