Do Shell ULSD contribute to the protection of the environment?
The prime objective in developing Shell ULSD is to offer the driver a fuel with lower than 50 parts per million (ppm) content of sulphur. When used together with a Euro4 compliant vehicle, i.e. the car is equipped with Euro4 engine hardware/technology, this would ensure that the tailpipe (exhaust) emissions meet Euro4 emission standards. Hower, Shell ULSD can be used for all diesel vehicles, including existing Euro2 and Euro3 compliant vehicles. The lower sulphur content leads to lower sulphate emissions, which also reduces particulate matter (PM) emission by weight, leading to better air quality for Singapore overall.