Definitely not since new, owned the car for the past couple years now and the turbo didn’t look like this about a month ago... I actually did use an octane booster (can’t remember which brand) a few months ago because the tank had been sitting for nearly a year, could that be the cause? I’m not too familiar with this stuff, is the residue something I should be worried about?
Also, would this be related at all to the white smoke in my exhaust?
Sent from my iPhone using Tapatalk