Originally Posted by 2door
The only problem with your theory, restapukin, is that if carbon removal was the issue how then did I collect "copious amounts" of carbon in two tanks that I had accumulated in 1500 miles? I rode this bike hard for those two tanks and the power kept increasing the further I rode. It was if the motor was ridding itself of the effects of the Opti-2. I'm of the opinion that the oil is so slick that the rings could not hold the compression that they were able to with standard oil. To add to this; the oil I have been using for a long time, Stihl 2 cycle chainsaw oil is supposed to be mixed at 50:1 and I typically use it at 24:1 to 30:1. Is that the reason my motor had previously been running so good? Excessive lubrication? Still open to suggestions here.
The Local AMSOIL dealer is the most in-demand auto repair shop in the region. He sponsors a call in car show Saturdays and he has warned people over and over not to switch on older car from petroleum oil to Amsoil as Amsoil will cause all the SH*T in the engine to loosen up and throw down a lotta sludge...so much that it's total accumulation could clog intake passages to oil pump, or something, and damage the engine.
The theory given in this thread that switch back to petro-oil allowed the engine to run hotter and but some of that dreck up seems to FIT with the guy's statements and it seems to me to be a good explanation.
All I know is I have been using it from the third tank and the engine seems to run smoother