A42 motorway, France: services fuel prices vs the exit
On the A42, diesel at the 2 services we track costs a median 20 c/L more than at the best station off the next exit; leaving saves at least €10 per 50-litre fill-up at 1 of them (prices of 3 November 2026).
Diesel, Petrol 95: services mark-up (c/L).
| Services | Saving on 50 L | Diesel | Petrol 95 |
|---|---|---|---|
| Aire de Lyon Montuel Dagneux Small gain | +€5.66 | 12 c/L | 0 c/L |
| Aire de Lyon Dagneux Dagneux Leave the motorway to fill up | +€11.73 | 28 c/L | 22 c/L |