In September 2021, fuel in Slovakia averaged €1.429 for petrol

Petrol, monthly average€1.429/L
Diesel, monthly average€1.284/L
LPG, monthly average€0.707/L
Weekly bulletins held for September 20214

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