Routes
Saarbrücken–Metz: cheap fuel vs Crit'Air zone rules
On the Saarbrucken–Metz run, the cheapest station is not always the right station — Metz operates a ZFE low-emission zone, and a stop inside the affected perimeter can cost more than the fuel saving for vehicles on Crit'Air sticker 3 or above.
Decision question
Is the cheaper station still a good choice once route distance and French restrictions are checked?
What Kilomo should compare
- German MTS-K station prices near Saarbrucken can be competitive with French market prices on some days — check the live gap rather than assuming France or Germany is always cheaper.
- French border-area stations (Forbach, Freyming corridor) are market-priced and often sit between German and French average levels — a useful middle option for drivers who don't want a full detour.
- Metz ZFE restrictions apply to surface streets in the urban area, not to the A31/A4 transit corridor — diesel Euro 4 and below should check if their destination is inside the ZFE boundary.
- Net saving on a 5 km detour to the better-priced side at 8 c/L gap on 50 litres: roughly €3.40 after detour fuel — clear yes if the station is near the route, not worth it as a standalone trip.