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Old 24-06-2008   #1
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Diesel economy

I have filled my tank seven times now and done a total of 2750 miles.The on -board computer is accurate ,but I have used a calculator to double check, here are my results,
45 mpg Shell
43.45 mpg Shell
40.8 mpg Total
47.38 mpg All motorway 550 miles on same day
40.65 mpg Total
40.01 mpg Asda
42.1 mpg Shell

I do 75% Motorway miles and 40 miles a day. (20 each way).
How does this compare with your car?
I should add that mine is a 150 Sport MJet
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Old 24-06-2008   #2
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Re: Diesel economy

Thats terrible. We had a 150Mjet Demo that avewraged 52MPG.
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Old 24-06-2008   #3
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Re: Diesel economy

Quote Originally Posted by The Beast View Post
Thats terrible. We had a 150Mjet Demo that avewraged 52MPG.
sport or dynamic?

I've not got near an average of 52mpg unless I drive it carefully. Typical mpg for me is 44-45 running on either shell extra or shell v power.
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Old 24-06-2008   #4
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Re: Diesel economy

Sport. But wouldn't think the tyres difference between the 17"s we had and the 18"s would make that much difference?
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Old 24-06-2008   #5
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Re: Diesel economy

Mines sport on 17s and as I say between 42-45mpg.
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Old 24-06-2008   #6
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Re: Diesel economy

Quote Originally Posted by Hellcat View Post
Mines sport on 17s and as I say between 42-45mpg.
Yeah but I've seen you drive!



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Old 24-06-2008   #7
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Re: Diesel economy

Lies... all lies.















technically I was a blur so you didn't see me
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Old 24-06-2008   #8
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Re: Diesel economy

in my petrol the wife is getting 28mpg
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Old 24-06-2008   #9
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Re: Diesel economy

Quote Originally Posted by stephen01 View Post
in my petrol the wife is getting 28mpg
Jings, Crivvens and Helpmaboab!

She must be flooring it everywhere! I'm even managing to get more than that just now on my 150 Sport T-jet...now that the novelty of having a turbo has worn off! lol
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Old 24-06-2008   #10
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Re: Diesel economy

It's not the wheel diameter that makes the difference, it's the tyre width. 225's (17s or 18s) have a higher rolling resistance than the 205's fitted to the dynamic. That said it probably doesn't account for more than 1 mpg!

My MJ150 sport is fairly consistently in the high 40's. Last tank I got 52mpg (I was driving really carefully while the fuel strike was on as Plymouth was hit hard and I do 300+ miles a week to get to work). I do find town driving hits it hard - I did a short fill before the strike, probably 1/3 town, 2/3 Mway & A-roads and got 41 mpg. I do find the trip computer fairly pessimistic, It consitently hovers between 44 & 46 mpg (I reset every fill), around 3mpg below what my calculations at the pumps are telling me. Nearly at 6000 miles now (in 3 months - with a trip to Italy next month) and as it beds in, the economy does seem to get better.

Does chipping make much difference to economy on the Bravo - my old TDCi mondeo estate would average 55mpg with its chip, beating the official figure of 47 by some margin!
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Old 24-06-2008   #11
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Re: Diesel economy

Quote Originally Posted by Dj_Doogz View Post
Jings, Crivvens and Helpmaboab!

She must be flooring it everywhere! I'm even managing to get more than that just now on my 150 Sport T-jet...now that the novelty of having a turbo has worn off! lol
Doesn't have to be floored to have them sort of figures, i checked mine the other day and i haven't been on the mway for a small while and it came up as 24mpg ! its catch 22 really, if its floored i guess it would reach them sort of figures,but if driven just around the town, it is coming up with 24 mpg on mine ,thats without the sport button pressed,but having said all that i havent been using 5th and 6th gear this past couple of weeks and that does make a difference.
So haven driven just around the town the past couple of weeks only gearing up as far as 4th gear it has told me it wants to drink a bit more juice, but back to better mpg next week
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Old 24-06-2008   #12
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Re: Diesel economy

i do 650+miles a week, 85% Mway, then fast twisty "B" RD, A272 anyone know?
never drop below 44mpg and I dont hang about, it is a 150Mjet btw.
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Old 24-06-2008   #13
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Re: Diesel economy

she has two kids in the car and she drives pretty well, our big problem is its all town driving, when i was coming back from stanford i was getting 43mpg, not bad for a petrol

like already said, a lot depends on what type of driving you do.
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Old 25-06-2008   #14
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Re: Diesel economy

I Regularly get between 32 and 35 in my Tjet Sport. Not too bad i thought as i do like to use the new found acceleration the fiat provides!!!!! Driving is a Mixture of Motorway and A roads including a Crawl into london and Home if i'm in the Office!!!
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Old 25-06-2008   #15
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Re: Diesel economy

MY Dealer has offered to look at the car re bad economy, should be getting 50 plus.
But suggested I wait a couple of months.
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