In September 2011, fuel in Luxembourg averaged €1.318 for petrol

Petrol, monthly average€1.318/L
Diesel, monthly average€1.180/L
LPG, monthly average€0.608/L
Weekly bulletins held for September 20114

Monthly averages for Luxembourg across September 2011, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).