Currently about 75p/L for unleaded, more for Lead Replacement Petrol (LRP/4-star) and diesel (80p/L+). That's down in the south-east, it's more pricey still in remote parts of Scotland. It's also usually more pricey on the motorways for some reason, and quite a lot cheaper if you go to supermarket petrol stations, eg Tesco, Sainsbury, Asda.

James, UK.