In August 2008, fuel in Belgium averaged €1.468 for petrol

Petrol, monthly average€1.468/L
Diesel, monthly average€1.256/L
LPG, monthly average€0.595/L
Weekly bulletins held for August 20084

Monthly averages for Belgium across August 2008, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).