Kentucky and whoever else,
Speaking of rattle. My low hour Kt17 II sometimes has just a faint bit of rattle noise coming from the valve train area since I've had it which is about 11 hrs worth. I don't know much about the insides of an engine so I'd hate to ignore a potential problem. This last gas can fill up I decided to mix a little under ratio of MMO. Haven't had a chance yet to see if it changes anything. Also what octane do you guys recommend? 87, 91, 93... thanks
adrian