I replaced all 6 injectors on my wife's 05 Mercury Mariner (3.0 V6). After doing so there was a fair amount of white smoke coming out the tail pipe. Filled my garage. After a little bit it was less and less, and eventually none. The vehicle runs great, no issues at all. All fluid levels are where they should be, everything is connected properly, and they are just a stock replacement injector. Nothing performance, they are Motocraft injectors as well. I'm assuming there was some type of lubricant or preservative (mmmmmm preservative) in the injectors and it's just that burning off, I've just never seen that before. Anyone have any experience with a situation like this?