Dyed diesel, also known as marked diesel, is a type of diesel fuel that is colored with a red dye to distinguish it from regular, taxable diesel fuel. In Canada, dyed diesel is primarily used for off-road purposes, including agriculture, construction, and heating. This fuel is not subject to the same taxes as regular diesel, making it more cost-effective for industries that do not use public roadways.
Clear diesel, also known as regular diesel or road diesel, is a type of diesel fuel intended for use in vehicles that operate on public roadways, such as cars, trucks, and buses. This fuel is specifically formulated to meet the standards required for on-road use, ensuring it is suitable for the engines of vehicles that travel on highways and city streets.