Is it bad to keep block heater plugged in?
Is it bad to keep block heater plugged in? One thing that most can agree on is that the maximum amount of time you should leave the engine block heater plugged in for is four hours. Any more and you're just wasting electricity. You should also plan for plugging your vehicle in for at least two hours to ensure it will start. Where is the block heater on a 5.9L diesel? The 5.9L diesel engine has the block heater located on the right side of the engine below the exhaust manifold next to the oil cooler (1). The block heater...