https://www.bbc.co.uk/news/uk-51731757

"Rishi Sunak is set to announce in next week's budget that red diesel
- so-called because it is marked with a dye - will no longer attract
a lower fuel duty. It currently accounts for about 15% of total
diesel sales in the UK and costs the Treasury about £2.4bn a year in
revenue."

Red disel current attracts 11.1 p/l duty. "Road" diesel 57.7 p/l.

The reporting of these rumoured changes also hint that the freeze on
fuel duty may well end.

Think I might be filling the genset and paying a visit to the local
garage and to top up the jerry can and a 25 l drum or two...

--
Cheers
Dave.