General Mpg
- Thread starter dobloabarth
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General Mpg
According to the 'puter our 1.9jtd avaerages about 51, and neither of us is heavy footed.
Time for a brim to brim check? Or would that be as inaccurate as the 'puter also logs the mileage?
Time for a brim to brim check? Or would that be as inaccurate as the 'puter also logs the mileage?
MRT
New member
Mine does on average around 55mpg but best I have had is 71mpg on the motorway in the slip stream 
of a HGV.
of a HGV.well on a steady run at around 80 my jtd gives up to 55 on the puter but its pretty inaccurate. a brim to brim calc shows me getting around 20% less than this which isnt so much fun, only done around 25k miles so i am now wondering why I am getting so little and why my puter is so inaccurate, perhaps your puters are way out too ?
MRT
New member
yeh think my computer might be out a ittle bit , but what i do know is I do 250 miles a day and it costs me £19.00 to refill the tank. I reckon thats pretty good
Unfortunately you can't rely on computer, mine reads about 5% out which means I'm still averaging 52 mpg, fantastic for something with aerodymanics of a brick!
Oh yes, I've had 60 mpg, driving steady on long run.
NottsCharger
Oh yes, I've had 60 mpg, driving steady on long run.
NottsCharger
captain_swing
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I think one of the problems with relying on the computer is that it doesn't operate when the engine is idling - my Doblo has two mpg measurments (as does everyones?) an average calculation and a current mpg measurment. I notice that the latter doesn't work when sitting in traffic. I can only assume that the average mpg doesn't either - this means that if you spend a long time in traffic, as I do living in the Southeast, then the fuel used when idling isn't calculated into the overall figure - hence (some of) the discrepancy.
dobloabarth
New member
I think the culprit could be the alloy wheels? my doblo has elx model 14" alloys. Some models come with 13" wheels! so its possible the speedo is calibrated with those in mind and that in turn means the mpg computer is wrong?
Surely the bigger wheels would be fitted with a lower profile tyre, so the rolling circumference remains the same?
doblo
Member
captain_swing said:
When idling in current it is 0mpg. When on average consumption, when idling the mpg does count. If you were averaging 50mpg & then suddenly got stuck on the M25 for an hour or two with the engine running you would gradually see the mpg coming down.
doblo
Member
Another reason for high mpg is the feel good factor from FIAT. You feel better if the computer reads 50mpg rather than 45mpg.
My Doblo has only done 3000miles but the mpg is running at 50mpg over 3 refuelling top ups.
dobloanalyst
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With our Doblo family (1.3 multijet - 7000 miles) we get around 43 mpg in stop-go traffic around town and 46-52 mpg on the motorway depending on speed (60mph = 52 mpg, 70mph=46 mpg). On the few occasions I have checked the trip computer it has proved very accurate (+- 1 mpg). In the recent cold weather I have noticed a big difference, currently reading around 38mpg (town driving).
Cheers
David
Cheers
David
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Our Doblo family reads on average about 48mpg on town driving, sometimes had it up to a steady 52mpg.
Trouble with the ickle 1.3 MultiJet (which is really 1248cc!), not to hot on Motorways so drops to the low 40s. We've only got about 8,000 miles on the clock, so still pretty tight.
Haven't done a Brim to Brim test yet as I'm too tight to let the wife fill up that big tank each time, it's 60 litres for christ sake!!!
Pete
Trouble with the ickle 1.3 MultiJet (which is really 1248cc!), not to hot on Motorways so drops to the low 40s. We've only got about 8,000 miles on the clock, so still pretty tight.
Haven't done a Brim to Brim test yet as I'm too tight to let the wife fill up that big tank each time, it's 60 litres for christ sake!!!
Pete
