Venom Power
Full Access Member
I have an '03 Navigator that recently developed what I think may be a problem. When it sits up for a few days the exhaust emmits blue smoke for about 20 seconds at startup. Is that normal:dontknow: ? The stealership claims it is. I think they're just pulling my wood (term used on 'non-offensive'). Would the fact that I use 87 octane in it be the culprate? Somebody please let me know.