Fill Up At Busy Stations

Please note: this tip is not 100% proven and we continue to look into it

If you don't mind waiting 5 minutes when you go to fill your car up, then try to buy your fuel from a busy petrol station.

When a station is consistently busy it will require its underground tanks to be filled on a regular basis. Whereas stations that don't have as much custom will have fuel sitting in the tanks for longer periods which can reduce the quality of the fuel. This may lead to fuel which is less powerful and less economical.

Problems
You may have to sit and wait to fill you car up, which can use a small amount of petrol cancelling the potential benefits. If you're expecting to wait a while turn your engine off.