No of miles until next fill up

[sue20]

Hi
Hope this isn't a daft question.
When I fill a car up the electronic display usually says around 300-310 miles until it's empty again.
Today it said 250 and it's stayed like that all day.
The car's a 2010 Fiesta.

Any idea why that should be?

Like I say, hope it's not too daft a question.

[Biker's Nemesis]

Were you parked on a slope when you filled up?

[sue20]

Nope, on the flat.

[Biker's Nemesis]

Maybe that you've had some sort of air lock when you've filled up and haven't got as much in as you usually would.

[sue20]

jagracer said:

You haven't driven it.

How d'you mean?

I filled it up and I'm the only one who's driven it all day. I filled it up with unleaded, as usual, and have had no problems driving it today.

[jagracer]

sue20 said:

jagracer said:

You haven't driven it.

How d'you mean?

I filled it up and I'm the only one who's driven it all day. I filled it up with unleaded, as usual, and have had no problems driving it today.

It was a joke but perhaps your last bit of driving before filling it up was less economical than usual and it's taking time to reassess the remaining mileage. I hired a Transit last year, filled it up and the estimated mileage was 250 but as I drove it (all motorway) it kept going up until it reached an estimated 450 miles. After I had been driving for about an hour and a half the end mileage fell in line with what I was doing and I ended up getting about 450 miles from the tank. So although it said 250 miles this time, I expect you'll get your normal 350 out of the tankful.

[va1o]

They normally show full range for a while after filling up, and it would be less than normal due to recent driving achieving lower economy

[HedgehogFromHell]

My RS' readout displays different mileage to empty dependent on certain factors:

1. How much of a hoon i was on before filling up
2. What fuel I fill it with - BP 97 gives average 310mte and Shell 99/Tesco Momentum gives circa 330mte
3. Whether i reset the mpg figure before fill up

[HedgehogFromHell]

Holy Triple Post Batman!