Dave Plowman (News) wrote
Rod Speed wrote

It's either diesel or it isn't.

There is a difference between making
it from crude oil and from CO2.

I refer you to the sentence below.

Or perhaps you consider alcohol or hydrogen that
a petrol engine can run on just synthetic petrol?

I make an obscene gesture in your general direction, as always.

Collins GEM English Dictionary
diesel n. ~diesel oil fuel obtained from petroleum distillation.

Pity about biodiesel.

A fuel made from other than that may well
work in a CI engine, but isn't diesel oil.

If its chemically identical, it is.