Funnily enough, I am off to near the Spanish border this w/end, but as for getting gas, the fuel cost (and going up weekly!) is somewhat more than a bottle refill locallyWe are supplying Spain through our sister company Argoco Espana but have not got any distributors in France as yet.
We have distributors in northern Spain if you fancy a drive south;
Argoco | Nuestros distribuidores
argoco.es