ethanol somehow. I am still wondering if ethanol cuases carbon build up to increase somehow. Working at a remanufacturing plant I tear down rx7/8 motors all day and I have never seen so much carbon built up, 90% of the motors fail due to compression and I cant too much more but lets just say the mileage is very low. I know that RX7 motors had a much longer life then these in the past. Guess I should bug the engineers at work or something.
My 2 ladies and dads 350z wishing it was as sexy as my girls :)