A 55-litre family tank of UK diesel cost £104.90 on the official average for the week commencing 14 September 2026. That is 190.72 pence a litre, multiplied by 55. The litre is not a mystery number. It is wholesale fuel,…
On a litre of UK diesel the Treasury takes two taxes: fuel duty at 52.95p, then VAT at 20% on the whole price. Duty is the same on petrol. VAT is the same rate on both. The extra pence of…
Diesel and petrol come from the same barrel. In the UK they carry the same fuel duty. Yet in mid-September 2026 a litre of diesel sat near 193p and a litre of petrol near 171p. The gap is not a…