Fuel Oil has many uses and it comes in a variety of grades depending on its need for usage. The most common grades are Ultra-Low Sulphur (ULSFO), Low Sulphur (LSFO), and High Sulphur (HSFO) Fuel Oil grades. Fuel Oil is used to warm homes and to power industrial-grade generators and industrial boilers. It is also used to blend bitumen. Fuel Oil generally burns longer and is therefore favoured by industries and the running of power plants.