when you guys start your diesels, do you give it half gas pedal when its 32*+ and full pedal when its 32* and below? i was looking at the driverside visor, and thats what it was saying to do, and i was wondering if that was really necessary. everytime ive tried to do that, it still doesnt start. most of the time i have to spray starter fluid into the intake to get it to start even when its 50* out, unless its already warm. could it be hard to start because of the IP? (yes i have been waiting for the glow plug light to go off)

so if my truck struggles to start its probably got bad glow plugs? how hard are those to change?
--but more power would be nice...