Routes
Luxembourg–Saarbrücken: fill up first, save 10–20 c/L
Leaving Luxembourg, you're leaving the cheapest regulated fuel prices in the region. Filling before you cross is almost always correct — unless German MTS-K data shows an unusually cheap station in Saarland that day.
Decision question
Is it better to fill in Luxembourg before crossing, or compare German stations near Saarbrucken?
What Kilomo should compare
- Luxembourg's regulated ceiling typically sits 10–20 c/L below German market averages and 20–30 c/L below German motorway stations — filling before you leave Luxembourg is the default right call.
- German MTS-K prices near Saarbrucken update multiple times daily — on the rare days a German city station undercuts Luxembourg's regulated price, you can verify it before committing to the detour.
- Saarbrucken-area A620 motorway stations are 5–10 km inside Germany from the crossing — if you missed the Luxembourg fill, adding that stop costs 10–15 extra minutes.
- For evening crossings, check opening hours: major Luxembourg motorway stations run 24/7; some German independents close by 10 pm.