How accurate are the trip computers in Fiat cars as for the MPG?

not very!

They are all over the place especially on newer vehicles, but thats cos the engine isnt run in!!

After 66k mine seems to still read a little higher, usually beween 2 and 5mpg higher... So out by up to 10%, which isn't too good in my book...

Mine is a 52 reg punto, I always calculate the mpg from the fuel and the trip computer is always pretty much spot on, although when it was new it did overread a little.

Dr_Pepper said:

Mine is a 52 reg punto, I always calculate the mpg from the fuel and the trip computer is always pretty much spot on, although when it was new it did overread a little.

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Damn!!!, so at best I am getting about 31mpg as it reads

Well I'm not saying that they are always right loads of people say theirs overreads - but mine is good though. But I wouldn't think it would ever underread - that wouldn't really be in Fiat's intrests would it

31mpg for an HGT sounds about right doesn't it? Christ I only got 30 out of my Mk1 55!

I can only dream of getting 31mpg.

The ulysse surely does more than that? It's a diesel right?

Or is it that you've had it re-tuned.

It weighs over 1.5 tonne at a guess and it's a 2.2 litre, diesel or otherwise, and remapped for 170BHP I think.

I'm getting 25 mpg from our 2.0 petrol auto, which isn't bad. And that has been my wife driving mostly in town.

Dr_Pepper said:

The ulysse surely does more than that? It's a diesel right?

Or is it that you've had it re-tuned.

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Ok, I originally made the post about the Stilo Abarth - probably getting 23mpg out it, BUT I drive it like it was stolen. Yes, it is remapped, so possibly why mine is better then KoArAnGs, which isn't?!

As for the Ulysse, yes, it is c.165bhp [up from 122bhp or so, I can't recall], but as Paul said, it is a large car, kerb weight is just under 1.8 tonne. That is a lot of car to move, and the mpg on it is probably around 32mpg [but car is used for short school runs] - still, that compares very nicely with the 2.0 petrol Ulysse

You should see the way my wife drives though, 25mpg is pretty good.