hey y'all i'm down in southwest arizona with my little 190d. she started smoking pretty bad, looks like light blue to mostly white smoke. i've decided to drain the fuel from the tank and i know that there is some kind of plug under the car to do that but i can't find it. it tried to siphon the diesel with a hose but ended up with a mouthfull of the @%@# and only got about 1 gallon. anyone know where to find this plug hole? or other causes for the smoke, i've got some d.purge on the way from Inter Auto Parts out of San Diego, was about $30 with shipping for 3 bottles - anyone found a cheaper source for the purge? many thanks for all the info that people share here!!!!

phil