Accuracy of MPG readout

As long as it is on. The Range doesn't work unless you are moving though.

Of course mine is a deisel, but I can't see the petrol version being any different.

Anyone know better?

this maybe because yours is an SX and has less features than the ELX

like climate control and twin sunroofs

I haven't been out yet to check the car.......it's raining!!
I will post here though when I find out.

Oh yes I have those

Well, i've been out to look at the trip/mileage button and the only other reading it shows is
--0
It does not change when I press buttons or change when I drive.

Any one shed some light on this please?
What is it?

What is brim to brim ?

Hi just joined the forum. I have a 2005 JTD Dynamic 115bhp. Display usually indicates an mpg of between 34 - 37 mpg over a whole tank. Had it checked twice at dealer and they say everything is normal. Had an indicated 45mpg once on a long journey at no more than 50mph. When towing, struggle to get 28mpg. Have to try the brim to brim.

Hello Conan and welcome to the Forum

The brim to brim check is the only reliable way to see how many MPG you're getting from your car. I know my Doblo over-reads by about 3mpg, as it usually shows a consistant 50mpg around town and can go upto 65 on the motorway! Yet around town I'm getting around 46mpg actual

P.S. CeeEmDee a brim to brim check is where you fill your tank up to full and record how many litres you put in for example 40.5 litres. Make sure you reset your trip computer (or analouge trip) to 0. Drive until the tank is nearly empty (don't let it run out) then fill up to full again and record how many miles you've done say 398miles, and how much fuel you put in this time say 38.9 litres. Now you divide 398 with 38.9 and this gives you miles per litre. You can then go on the internet and use a converter to convert Miles/Litre into MPG!

Is there a way to reset the MPG software as mine is well out, it is showing as 22.6 MPG , I have used over half a tank and done 350 miles, I am going to do a fill to fill check when it eventually runs out, it seems to be going on forever.
I recon on about 47 MPG...

OK fill to fill works out at 40.9 not bad for a lot of running on the spot, but the MPG was showing 21.4, not sure whats going on there

I am at the mo lookin to buy a Multipla JTD ELX and am getting a little worried at the mpg some of you are getting.Most adverts for JTD ELX bragg about getting 50mpg, is this not the case ?


Very useful tool to work out mpg.

http://www.geocities.com/mpgcalc/

We get over 50 mpg most of the time in out 51 plate JTD. Even towing!

Kate

I've just done a brim to brim test on our 52 JTD 115 over a 580 mile trip to see the grandparents, mainly motorway at (the best I could manage to) a steady 70, but with some bits and pieces of town and A road.

The cars computer gave me an average of 35.4 mpg, which I was not happy with! but when I filled up I found that I had used just under 13 galls, which gives 44.7mpg, which is much better!

All I have to do now is remember how to add on 26% in my head and I can keep track as I drive!

The best mpg I have had on the trip computer was 40 when I set it as I joined the motorway and checked 200 miles later when I came off. So that would be an actual 50.5 adding the same percentage on.

It was mentioned earlier that if you use US Galls it works out about right - has anyone asked Fiat (head office rather than a dealer) if they did use US galls, as most people seem to get a similar error?

John

My JTD ELX(105bhp) returned 50mpg, as have my last two Eleganza(115bhp)

I was quite shocked to see the computer showing 29mpg on our Multipla, so I kept a note of how many litres of fuel we were filling up with, start and finish mileage, etc and it works out we actually get 40mpg (been monitoring for about 3 months), which I'm happy with as most of the driving is through 30 to 40 mile an hour restricted villages.

We've not really had our Multipla on a really good run yet but I'm confident the mpg will drastically improve on a longer motorway run.

P.S. I'm a newbee to the forum and would like to wish all fellow ugly bug owners all the best in their Multipla experience. Hopefully I will give you a flash if you are ever visiting north Yorkshire.