WHY DO DIESEL ENGINES REQUIRE GLOW PLUGS?
Unlike gasoline engines which use a spark plug to ignite an air/fuel mixture, diesel engines rely on the heat of highly-compressed air to ignite a precise amount of fuel to initiate combustion. Heating the air to a minimum starting temperature of 850°C is critical for diesel engine start-up. In low temperatures, factors such as cold intake air and cold cylinder walls hinder the attainment of the necessary starting temperature. In these situations, glow plugs function as an additional heat source to bring the intake air up to the temperature necessary to initiate the combustion cycle. No matter which type of diesel engine a vehicle has, Bosch supplies just the right glow plug to give you dependable cold-start performance. WHAT SETS BOSCH GLOW PLUGS APART FROM OTHER BRANDS? • Bosch patented Duraterm® technology reaches higher temperatures more quickly for fast engine start-up. • Iconel® 601 glow tube material resists corrosion and vibration for long service life. • Fine-grained ceramic i