Diesel Injectors & Lubrication

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Diesel Injectors & Lubrication

One key difference between a diesel engine and a gas engine is in the injector process. Diesel engines use direct diesel injectors – injectors push fuel into the cylinder, increasing injector lubrication. A fuel injector is the most complex component of diesel engines and has been the subject of a lot of experimentation.

In an engine, the diesel fuel injector pump may be located in a variety of places. Diesel injectors have to be able to withstand the temperature and pressure inside the cylinder, deliver the fuel in a fine mist and increase injector lubrication. Getting the mist circulated in the cylinder so it is evenly distributed is a problem, so some engines employ special induction valves, pre-combustion chambers or other devices to swirl the air in the combustion chamber or otherwise improve the ignition and combustion process.

Some diesel engines contain a glow plug. When an engine is cold, the compression process may not increase the air to a high enough temperature for the injectors to ignite the fuel. The glow plug is a heated wire that heats the combustion chambers to increase the air temperature when the engine is cold so it can start and run properly.

Increase Injector Lubrication

Since the introduction of low sulfur fuel, there has been a dramatic increase in internal wear in the pump and injectors. This is causing premature failure of these components. Certain additives can increase injector lubrication. Not only will these additives extend the life of your diesel injectors or pumps, but testing has proven them to also enhance fuel economy, add horse power, reduce emission and increase lubrication. Using a winter additive will lower the pour point significantly and increase injector lubrication - a great benefit for cold winters!