i have searched and read but havent found an answer unless i havent searched the right key words heres the problem lots of smoke its blue whiteish but i am running about 30% oil in the fuel i have been running this fuel for 15000 miles and i started noticing this new idle smoke, smoke at idle clears up after a 10th of a mile or so off a dead stop got cylinder 8 balance rate -3.6 never gets much closer to zero few others are -1.3 and the rest are under 1 i am thinking i have a stuck injector due to the big negative #s need some insite or is turbo seals a possiblity as well as i am about half qt low on engine oil with only 2000 miles from the last change HELP