How much does unleaded petrol cost in France, is it cheaper to fill up before crossing the channel

1. Petrol is cheaper in France than in the UK.
2. I hope you are not talking about using a rental car to cross the Channel.

No taking my own vehicle.

Here is the easy way to determine prices:

http://www.prix-carburants.gouv.fr/
http://www.acl.lu/html/tour_info/pri...arburants.html

At the current exchange rate, average prices in France for unleaded are noticeably higher than in most English petrol stations. But it fluctuates, and the petrol station at Dover docks is always pricier than anywhere else.

Diesel, BTW, seems always pricier in England than in France.

As in England, hypermarket/superstore prices (and conventional stations immediately around the hypermarket) are cheaper than elsewhere: French motorway service stations are a bit pricier than ordinary petrol stations, but not as extortionately so as in Britain.

If you're on a ferry, and English prices remain lower, there's a Tesco with fuel just as the A2 stops on the edge of Dover.