Gas oil 1000 is a high sulphur gas oil, also known as MGO, it has 1000ppm of sulphur.

High Sulphur Diesels are marked with a green dye in the same way as standard marked gas oil, meaning it is illegal to use as a fuel for on-road vehicles. It is used in stationary machines including generators, older heating and grain dryer systems It is subject to a VAT rate of 13.%