One of the most expensive mistakes I made was running one can of "generic" 2 cycle oil in an Echo chain saw- - - - -locked up the engine before I used one tank of gas. That one cost me a new crankshaft, and an oversized piston. I was able to save the cylinder, but it had to be honed out to fit the bigger piston.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!