In October 2018, fuel in Slovakia averaged €1.391 for petrol

Petrol, monthly average€1.391/L
Diesel, monthly average€1.329/L
LPG, monthly average€0.645/L
Weekly bulletins held for October 20185

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