i have a tuned ecu it has a chip in it i think i'm burning water because i'v notice my radiator is always missing a little water i fill it let it go for a couple of days and i have to put about a coke can in of water i looked for leak i didn't see any i don't know what else and i was told by phearable.net john vega to keep it in 11 or something like that he said anything higher i'm to lean and anything lower i'm to rich and losing power