In April 2021, fuel in Luxembourg averaged €1.280 for petrol

Petrol, monthly average€1.280/L
Diesel, monthly average€1.151/L
LPG, monthly average€0.577/L
Weekly bulletins held for April 20213

Monthly averages for Luxembourg across April 2021, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).