Heres hoping, also hoping there will be lots of 24hour petrol on the way seeing as how i get about 200 miles max per tank of optimax so 150 miles on the old french stuff, specially with the olf lm right foot in action.
I've done Le Havre Le Mans in a car with a 100 mile range, and it gets scary. Many of the filling stations have shut, and you're more likely to find one in a village than on the main road. These are now closing as the local supermarket now has cheap fuel. We made it though. Look at Mappy.com and make a plan, although it doesn't say when the service stations are open. Many are shut after 5:30 and on Sundays, leaving a card operated pump that will only take French credit cards.
Optomax. Oh dear, French petrol can be a bit rough, even the Super. Stick to Shell & Total, and listen for "pinking" at low revs. If its an expensive engine, take octane booster.
Plan now , and get it right on the day. remeber the 6 "p"s