you adjust your turbo to improve power. now heres the deal ! get your hoopie warm
then take off radiator cap , if you have bubbles ,theres your answer ,you have water getting in somewhere. is the smoke white or black? if its black well thats a good thing. if its white agua! put a couple bottles of fuel additive in tank probably help some. if you do have a crack
somewhere you should be losing fluid, if not your ok .i run my 7.3 on 100 % frying oil.keep on truckin!