Is petrolprices.com the best website for comparing gasoline prices in England and Wales? We'll be making a big loop between places like London, Southern and Northern Wales, Bath, the Cotswolds, Manchester, Liverpool,the Lake District and York. I was hoping to find one that could give an overall picture of how prices differ without typing in individual cities but maybe that's not possible.
Overall, which stations are the cheapest and is it true that you can't pay with a credit card at self-serve stations, like we can in the U.S.? I was hoping to avoid having to carry around a bunch of cash. Thanks for the advice.