At What Temp Should I Plug My Diesel In - Web the plug on the block heater itself is two round prongs but the plug that is at the front of the truck is a standard 3. Haven't noticed a difference in cold versus. Web the ideal temperature to plug in your diesel is around 20 to 30 degrees fahrenheit. Web to optimize your diesel truck’s performance, plug it in when the temperature drops below 20°f. Plugging in your diesel engine. Web i plug mine in at 35*f just to get the heat and defrost working quicker.
Haven't noticed a difference in cold versus. Web the plug on the block heater itself is two round prongs but the plug that is at the front of the truck is a standard 3. Plugging in your diesel engine. Web to optimize your diesel truck’s performance, plug it in when the temperature drops below 20°f. Web i plug mine in at 35*f just to get the heat and defrost working quicker. Web the ideal temperature to plug in your diesel is around 20 to 30 degrees fahrenheit.