3. Engine Performance: Glow plugs play a vital role in ensuring smooth and reliable engine performance. Without functioning glow plugs, diesel engines may experience rough starts, misfires, and reduced power output. 5. Fuel Injectors: Fuel injectors are components that spray fuel into the combustion chamber of the engine. They are controlled by the engine's computer to deliver the correct amount of fuel for optimal performance. There are different types of oil available, including conventi...