In March 2018, fuel in Slovakia averaged €1.312 for petrol

Petrol, monthly average€1.312/L
Diesel, monthly average€1.183/L
LPG, monthly average€0.566/L
Weekly bulletins held for March 20184

Monthly averages for Slovakia across March 2018, from the stored EU Weekly Oil Bulletin monthly history (European Commission, CC BY 4.0).