Is this real economy?

[ElRazur]

Sincei returnedthe courtesy car (avensis t3 diesel). i feel like my fto is drinking more than usual.

To sort this out once and for all i did the following. I put in £15 of petrol at 86.9/litre and ive managed to get iirc 47.2 miles so far with some petrol still left in the fto. I should mention im doing urban driving only.

Going by the above describtion and values, am i getting any economy at all from a 2.0litre v6 engine?

 

[ElRazur]

You don't need to fill from empty. Just zero the trip and make a note of how much fuel you can get in the tank. Next time you fill up, note mileage, brim the tank again and note how much fuel fits in.

that's what i did. i zerod the trip. and now it has a display of 47.2 but with some petrol still left.