In March 2008, fuel in Belgium averaged €1.403 for petrol

Petrol, monthly average€1.403/L
Diesel, monthly average€1.177/L
LPG, monthly average€0.564/L
Weekly bulletins held for March 20084

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