What can be a consequence of water in diesel fuel?

Water in diesel fuel can lead to significant problems within the engine. The presence of water disrupts the combustion process, leading to misfiring and poor combustion. This occurs because water does not combust like fuel, thus affecting the overall efficiency and performance of the engine.

When water mixes with diesel, it may also cause corrosion and rust within fuel system components, such as injectors and the fuel tank itself. Over time, this can lead to serious engine damage, including injector damage and fuel system failures.

Additionally, water can contribute to fuel separation, where the water settles at the bottom of the tank, potentially causing clogs and unhealthy operation of the fuel delivery system. All these factors make it critical to keep diesel fuel free of water to ensure both engine longevity and proper operation.