Fuel prices

Refuel plan

Diesel is cheapest in Hungary (€1.75/L) — top up there. That's €0.12/L under Germany.
No live prices for Serbia & North Macedonia (non-EU) — carry enough to cross with a buffer.

Country (in route order)DieselE10

🇩🇪 Germany€1.87€1.94

🇦🇹 Austria€1.83€1.74

🇭🇺 Hungary€1.75€1.69

🇷🇸 Serbia——

🇲🇰 North Macedonia——

Cheapest on-corridor stations (diesel)

🇩🇪 STUTTGART - KRIEGSBERGSTRASSE 55 A

AGIP ENI · 2m ago

€1.77

🇩🇪 MTS Waschpark

SB Tankstelle · 2m ago

€1.78

Station-level prices: 🇦🇹 Austria (E-Control) and 🇩🇪 Germany (Tankerkönig-Spritpreis-API, CC BY 4.0). Other corridor countries show the national average — no public per-station feed exists for them yet.