[Vwdiesel] Glow plug, relay,& ATF fluid

[William J Toensing]

1) What year did VW switch from slow to fast glow plugs?
2) Where is the glow plug relay located? If different for various years & models, I need to know the location on the '81 Rabbit, "80 & '81 Dasher, & 86 Jetta.
3) FYI, type "A" automatic  transmission fluid is GM & later became Dextrin. Type "IF" is Ford ATF fluid. I think Ford now calls it Macron.There is a difference between type A & F but I don't know what it is. Amsoil makes a universal ATF fluid suitable for both GM & Ford. I think most of the independents & foreign manufacturers use Dextrin. If some one knows better, correct me.I bought the '86 Jetta & it is home. Wife very unhappy about it.