when the truck is cold, and you forgot to plug it up the night before, will it hurt my truck or dump truck to start them while cold, and leave them plugged up while running? I ask this because it takes the dump truck forever to warm up, and didnt know if there would be any flow problems. my dumptruck heater is a bottle style in-line heater.

 

i dont see how it could hurt it, why would it matter if its plugged in or not?

 

I don't un plug mine until I am ready to leave. I let it sit and idle plugged in.

 

well, like this morning i had forgot with my truck in the welding shop, i had to drive the dumptruck to skoool. and i went and started it (NO ether, weak batteries and it fired right up at 18ish degrees!) and then i wondered but didnt know if it would be OK to plug up while i got ready.