I work at a mazda dealership and here in the last 3 days we've had six RX-8's towed in. All with fouled up spark plugs, in need of oil change, wont start ect. And to find out, All of it can be avoided if the drivers rev the engine up before turning it off. I wasnt too sure on the explanation the one tech gave me, he said it floods the engine and messes up the plugs if you don't rev it up. Anyone else know exactly why?