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Exactly!Originally posted by legalspeed
Page 150, the chapter on oils and lubricants is a good place to start.
He does quote Wiseco Piston engineers as stating "run it to red line without load" (dyno), at the same time he is telling you these specialized race parts are ground to a higher finish not found in retail machines.
This chapter should explain why not to use car oil in your bike.
Good luck bro.
Key work here is GROUND..... Geeez, didn't I say that?
You would be amazed at the condition of some so called "Brand New" Engines I've seen.... Bores meet the required tolerances, but "Barely"...thus the long suggested break- in periods.
Tighter manufacturing tolerances means higher costs...
So if they can get away with a so so engine tolerance, and it works, so be it....