This is from the Governments fuel duty site. How much is fuel duty.
The fuel duty rate in the UK is 52.95 per litre for petrol and diesel. This rate was cut in 2022 and has now been extended for the 2025-2026 tax year. This rate does not include VAT.
Based on an average of 36 miles per gallon (MPG) a petrol car’s per-mile fuel duty cost currenty reach 7p. However , diesel vehicles, with an average of 43mpg, achieve a cost per mile of 6p. Hybrids, which have an average of around 59mpg, have a per-mile cost of 4p. 26 Nov 2025
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