In reply to brianjcooper:
> I'd try and borrow the MSR multi-fuel. We took ours to the Picos de Europa and were able to buy Colman's white petrol, Paraffin and white spirit (brush cleaner) and they all worked well. Just remember to change the burner 'nozzle' for the correct fuel.
Yeah, I'm thinking this might be a good plan. Or rather, we've realised that we might get in early enough on Saturday to make it to Decathlon before it shuts, so we'll take our pocket rocket as plan A, but hopefully with a borrowed multifuel stove to use with white petrol / regular petrol / whatever as a backup, to leave in left luggage if we don't need it.
Although I have to admit I'm surprised that in techno-Dickensian 2019 there isn't some sort of Uber-like service where we can pay a random French street urchin a commission to buy a couple of canisters in advance and drop them off at the hotel.
Can petrol stations normally deal with someone buying about a litre of fuel from the pump? We've never had to deal with this before.