Synthetic oil causes clutch slipping?

24 replies to this topic
  • monkeymotocross

Posted September 22, 2011 - 06:56 PM


Rotella T 15w-40 does the job just fine


Posted September 22, 2011 - 07:35 PM


i have had good luck with Amsoil and Castrol RS rt 4:ride:

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  • dtha70

Posted September 24, 2011 - 12:24 AM


+1 on rotella 15w40! years of use without issue.

  • Polar_Bus

Posted September 24, 2011 - 04:25 AM


Gee what a surprise another oil brand war.

I don't use expensive syn's, they're just wallet bait for the average rider IMO.
I did have a immediate clutch slippage issue with an older Honda street bike resulting from swapping to a synthetic lubricant.

I don't care what brand of oil. I DO care more about chain tension, chain lubrication, and air filter maintenence.

I DO care about consistant, TIMELY oil change intervals.

I use Kawasaki 10W40 mineral in ALL my engines. It's been a proven relaible lubricant for the past 30 years, and it's reasonably priced, and convienent for me to purchase at my local dealer.

  • dalonar

Posted September 24, 2011 - 05:26 AM


walmart sells mobil 1 4t synthetic for 8.98 per quart. i've been using that with no ill effects

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