What type of fuel must be used in an engine equipped with a diesel particulate filter (DPF)?

Engines equipped with a diesel particulate filter (DPF) are specifically designed to reduce particulate emissions for compliance with stringent environmental regulations. The use of ultra low sulphur diesel fuel is critical because it contains a significantly reduced level of sulfur compared to regular diesel fuels. The low sulfur content helps ensure that the DPF functions effectively, as high sulfur levels can lead to the formation of sulfates that can clog the filter and disrupt the regeneration process.

Ultra low sulphur diesel fuel typically has a sulfur content of 15 ppm (parts per million) or less, which promotes optimal operation of the DPF and helps maintain engine performance and fuel efficiency while minimizing environmental impact. By minimizing sulfur content, this type of fuel supports the DPF’s ability to trap and burn off soot particles safely, thus facilitating smoother exhaust treatment and reducing the overall emissions from the engine.