Originally Posted By: ccdhowell
I actually run Redline Racing 40wt in my Yamaha Raptor 700 4wheeler with great results. I've done a used oil analysis and the RL is doing a great job. I have no clutch slipage even though the used oil analysis said the oil has 838 ppm of moly. Good stuff.
If it does not slip great, if it does you'll know what the problem is. No way will I ever put redline in a wet clutch again. It takes time to develope issue, about 5,000 mile before I started seeing some mild clutch slippage under heavy load.
by the way, manufactures require meeting an MA friction gate, redline is an MB rated fluid= slicker
The Mobil 1 meets Ma its a safe bet, I've used both but avoid the redline risk , ofcourse you can always switch back to known good oil if you do start getting slippage, it will begin in top gear under heavy load.