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cr 250 trans oil question

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I have a question; I bought a used 04 cr250 (love it) and i have been changing the trans oil after every ride. The reason being the oil is super dark after i ride the bike for a couple hours.

My question is, does the oil brake down or is it just flushing the trans/clutch?

How important is changing dirty oil, have no problem changing the oil after 5 hrs or so but every ride is a little much.

I'm using belray 80w, does anyone else have this same (maybe) issue?

if its just flushing the engine is there any other cheaper oil i can use? So, its not costing me 8 dollars a shot??

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Rotella-T 15W40 works great. If you do not change any oil offten, you will notice your shifting will get notchy. Steel clutch plates will get you more hours between oil changes.

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Can't answer your question but the oil in my '02 CR250 is always dirty too. I change it often (never go over 3 hours - usually a lot less), but it always looks dirty.

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It is the clutch plate material that is making your oil dirty.

You can use any Non-Energy Conserving oil (check your manual for what the label looks like).

I use Honda HP Trans Oil (red bottle). I buy it by the case and it's about $4 per quart. I use it in all my CR's and CRF's.

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I don't change mine every ride. Maybe every 3 or 4 rides. Unless you're running a full on wide open clutch slippin 30 minute moto then I'd change it.

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I have some extra pennsoil 10-30 left over. This is the energy conserving type. Should i put this in, start the bike for a minute or so just to flush it out? Good idea bad idea, i will not be riding with this oil in.......

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I read in mxaction that some pro mx mechanics used atf fluid for the race bikes in a pinch. I read it a few more other places that I can't remember now. I change my oil after every ride. I have changed out the aluminum plates so no more shavings in my oil either. It works well and it is a hell of a lot cheaper.

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I use ATF in my 01 CR250. I find it significantly reduces the 'clunk' when first engaging gear when the transmission is cold, and there is no detrimental effect to the transmission lubrication.

I change my oil after every 3-4 rides (approx 10 hrs). It is always dark in colour due to the clutch plate contamination. I have been following this procedure for some time and have not noticed any change in the 'cleanliness' of the oil, or had any transmission problems.

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