Glow plugs are in the cylinders, to heat the air so the air will heat enough when compressed by the piston to light the fuel.
Block heaters warm the oil in the oil pan, and by extension the metal of the engine block itself, so that the oil pump is able to immediately pick up and circulate the oil without it being goopy from the cold.
Glow plugs are in the cylinders, to heat the air so the air will heat enough when compressed by the piston to light the fuel.
Block heaters warm the oil in the oil pan, and by extension the metal of the engine block itself, so that the oil pump is able to immediately pick up and circulate the oil without it being goopy from the cold.
Cool. Thank you!!!