exactly like you get in the forecourt but it is dyed red and sold on to registered users at a lower rate of tax. the idea is to stimulate those businesses, give them a subsidy. it s essentially the same as the diesel you buy at the forecourt, but it s dyed red and can only be bought from registered sellers for approved uses. that s because the government charges less tax on red diesel via a rebate making it a lot cheaper than normal fuel. as a result, it s used in a lot of commercial kit. but the government says red diesel is responsible for ia million tonnes of emissions a year, which it wants to reduce to help meet its net zero 2050 target. fuel duty for red diesel isjust 10p per litre, compared to standard diesel at 53p per litre. from friday, 1st of april, companies will have to pay full fuel duty, unless they re exempt. there are exemptions for business in agriculture, horticulture, fish farming and forestry, as well as some others, but red diesel is only approved for specifi