[cbee]

Fill up when down to a quarter or less. This way I can wait until at a cheaper station and also check the mpg. Started doing this when the old 740's fuel gauge went wrong and I knew that at a certain mileage on the trip I needed to start looking around again for a garage.

Did once have someone say that the extra weight of a full tank reduces the mpg so any savings are wiped out but at up to 6 pence a litre (27 pence a gallon) saving or nearly £5 a tankful I doubt it.

Anyway buying fuel is like buying tyres, a distress purchase so the fewer times I do it the better I feel.