I stumbled across this marvellous comparison of camping and backpacking stoves, being in the market for something that burns other than meths[1] – this led me to:

[members.iinet.net.au]

International Fuel Names

Translations for the names of fuels commonly used in backpacking stoves.

Which is full of the mostly-useless-but-very-interesting information that geeks tend to enjoy.

One particularly useful bit of advice I found elsewhere is to not use automotive unleaded in a burner:

Unleaded environmental gasoline IS NOT the same as unleaded car gasoline from the pump. Environmental unleaded gasoline is a fuel designed for garden machines (i.e. lawn mowers) with four-stroke engines. It is most commonly sold in 1L or 5L bottles at the gas station. It does not contain benzene and many of the other health hazardous additives that are put into car gasoline.

Unleaded car gasoline contains a lot of additives that are needed for smooth engine operation etc, but these additives are extremely health hazardous and they are not burnt off properly when used in a stove. Instead, they escape as hazardous fuel vapour and exhaust fumes. THEREFORE, NEVER USE CAR GASOLINE OF ANY KIND FOR YOUR STOVE!

…which ‘nixes my original idea, but I am glad to have it clarified now that I am going to have to carry an extra fuel bottle regardless; apparently this constraint is not an issue with “good quality car diesel”…

—
[1] it looks like the Optimus Nova is my best bet, being as it burns liquid fuel and can be used either standalone, or as a drop-in replacement burner for my Trangia.