etcallhome's thread about smoke at startup was very timely. I have been having an issue with gray/blue smoke at startup. My normal startup (the last 3 years and 215+/- hrs.) has been a small puff of black smoke and pretty smooth idling, even in winter. Recently I have copious amounts gray/blue smoke and much more rough/stumbling idling at startup. This lasts upwards of a minute, then all is totally fine and normal. I have tried cycling the glow plugs twice. I also normally start at idle, but have tried 1/4 to 1/2 throttle with no difference. If I slightly bump up the throttle after starting, things even out a little quicker, but not much. I am no diesel mechanic, so I thought I would check here before sending it off to the dealer.
Just some other info: I changed the oil/filter, all new fuel filters and air filters at 200 hrs. Now showing 230ish. This affliction started around 215. I have also never used any sort of fuel additive. Within this time frame, I have also bought fuel from a couple different stations. As always, thanks for the help!
I took a video, hopefully it will work!