What fuel consumption should you expect from a Focus diesel?
What fuel consumption should you expect from a Focus diesel?
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MJK 24

Original Poster:

5,677 posts

265 months

Saturday 30th April 2011
quotequote all
Had a drive in a friends Focus diesel today.

59reg
1.6 5 speed
26,000 miles

I reset the 'Average Consumption' part of the trip meter and put 45 miles on the clock. We didn't breach 2,250rpm when accelerating (trpically changing up around 2,000rpm) and max speed was 60mph down the dual carriageway. Bit of urban. Zero harsh acceleration.

Come home time, the comupter said 40.9mpg average. I thought that that was pretty mediocre? Am I being harsh?

My daily is a 'Triggers Broom' of an old Scirocco that I've fitted a 1.6 n/a diesel to from a Mk2 Golf. It packs a full stable of 54 horses in their prime and I get 52mpg winter and 54mpg summer under exactly the same use. I can eek it to 60mpg on the motorway.

Are modern diesel mapped for passing economy trials at the expense of driveability and economy? There's no way in the world it'll pull from walking pace in 2nd gear for example whereas my Scirocco just goes without fuss under such circumstances.

To be honest, I'm sure I could have done better than 41mpg over that route today in the Elise.

tim2100

6,288 posts

286 months

Saturday 30th April 2011
quotequote all
modern diesels are mapped for performance & low noise, so will not be as economical as an old n/a diesel.

northandy

3,539 posts

250 months

Saturday 30th April 2011
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I recently had a passat blue motion for a week and covered 500 miles in it, it did 45mpg. The passat blue motion is a full 105ps of power and supposedly 116 g co2 wotsits.

My 120d has 177bhp, is 129 co2 wotsits but does 49-52 mpg week in week out on the same route.

I know the measure of mpg is a set test, but it seems some manufacturers maybe play to the test more than others

geeteeaye

2,369 posts

188 months

Saturday 30th April 2011
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Be wary of the trip computer's estimate over 45 miles as well.

VeeFour

3,339 posts

191 months

Saturday 30th April 2011
quotequote all
I ran a MkII Focus 1.6TDCI for a while whilst waiting for my CC to come through.

It was absolutely shocking on fuel - I was getting 38mpg over a full tank - and this was calculated, not taken from the dash - which claimed nearly 41mpg.

To put it into perspective, I was getting around 44mpg from a Passat TDI-140 and currently about the same from a Passat TDI-170.

The Focus was incredibly thirsty for such poor performance.

MrsMiggins

2,867 posts

264 months

Saturday 30th April 2011
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I've got a MK1 53-plate Focus 1.8 TDCI. When I stopped monitoring it at each fill up after 2 years of ownership I had averaged 45.5mpg and covered about 45k miles. Last tankful bought this week was just over 50mpg. I've had it for nearly 3 years now.

Not that exciting a car, but good at what it does.

VeeFour

3,339 posts

191 months

Saturday 30th April 2011
quotequote all
northandy said:
I recently had a passat blue motion for a week and covered 500 miles in it, it did 45mpg. The passat blue motion is a full 105ps of power and supposedly 116 g co2 wotsits.

My 120d has 177bhp, is 129 co2 wotsits but does 49-52 mpg week in week out on the same route.

I know the measure of mpg is a set test, but it seems some manufacturers maybe play to the test more than others
The BMW is also about half the size of a Passat, so you can't really draw too many comparisons!

MJK 24

Original Poster:

5,677 posts

265 months

Saturday 30th April 2011
quotequote all
VeeFour said:
The Focus was incredibly thirsty for such poor performance.
This is my conclusion based upon my findings from this afternoon.

Jasandjules

72,600 posts

258 months

Saturday 30th April 2011
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Oddly, I did about 260 odd miles today in my Passat diesel, 51mpg or so (computer said 56 so I take 10% or so off).. That was mainly motorway driving but I also got stuck in a couple of traffic jams...

I'd certainly hope for more from a Focus given the size...

mybrainhurts

90,809 posts

284 months

Saturday 30th April 2011
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My 2004 Mondy estate 130TDci will see about 48mpg on a brisk motorway run, with 60+mpg possible if held around 60.

Average mixed driving is 45 to 50mpg.

northandy

3,539 posts

250 months

Saturday 30th April 2011
quotequote all
VeeFour said:
The BMW is also about half the size of a Passat, so you can't really draw too many comparisons!
There's only 90kg between the 2 (1 person roughly)

Jem0911

4,415 posts

230 months

Saturday 30th April 2011
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Our 115 2.0TDCi Mondeo estate averages 42.8MPG on the OBC over 43500 miles.
Very few long journeys. School runs and shopping mainly.

Karlos69

900 posts

218 months

Saturday 30th April 2011
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My 2.0 TDCi Focus is averaging 46.2mpg over the last 12 months. Nothing like as good as I imagined tbh, but still more economical than my old Octy vRS.

Busa_Rush

6,930 posts

280 months

Saturday 30th April 2011
quotequote all
Volvo V70 tdi auto gearbox, almost 200k miles, 38mpg in the lanes to/from work, 45 if I include the odd bit of motorway or 55mpg on a motorway run. (Over 60 if I play the mpg game and stay below 60mph) This is the V70 with the old 5cyl VW van engine which was and possibly still is fitted to the VW Transporter and early A6, not the D5. All it gets is an oil change each year and an air filter if I remember. And these mpg figures are on Nokian WRG2 winter tyres still . . . they've got to come off asap.


Burrito

1,705 posts

249 months

Saturday 30th April 2011
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That's not great performance, but I'd say you're changing a little early to be honest.

Were you carrying a lot of weight?

andy-xr

13,204 posts

233 months

Saturday 30th April 2011
quotequote all
Karlos69 said:
My 2.0 TDCi Focus is averaging 46.2mpg over the last 12 months. Nothing like as good as I imagined tbh, but still more economical than my old Octy vRS.
Mine's a CMAX, 2.0 TDCi. Mix of motorway driving and around town covering around 2000 miles or so in the last month. Motorway miles show around 65 mpg, late 30's early 40's around town. This is according to the onboard computer, and I've worked out that overreads around 6-8 mpg

Interesting that when I changed the steering response from sport to standard I got an increase of a few mpg according to the computer and at the pump for roughly the same journeys, just seems to be more econmical. Or I'm driving it less like an angry dad, one of the two hehe

Karlos69

900 posts

218 months

Saturday 30th April 2011
quotequote all
andy-xr said:
Mine's a CMAX, 2.0 TDCi. Mix of motorway driving and around town covering around 2000 miles or so in the last month. Motorway miles show around 65 mpg, late 30's early 40's around town. This is according to the onboard computer, and I've worked out that overreads around 6-8 mpg

Interesting that when I changed the steering response from sport to standard I got an increase of a few mpg according to the computer and at the pump for roughly the same journeys, just seems to be more econmical. Or I'm driving it less like an angry dad, one of the two hehe
That's interesting about the steering settings. As soon as I discovered that feature, it was left on "Sport"!

My mpg is a calculated figure based on fill-ups and mileage covered by each tankful. The trip is pretty spot on though.

icepop

1,179 posts

236 months

Sunday 1st May 2011
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Interesting input into the ongoing Diesel economy debate.

One thing it shows, is that......so many engines......so many different results.....just reflects the potential complexety and diversity of similar designs, from the modern oil burner. Only constant is the high cost of repair.

philmots

4,666 posts

289 months

Sunday 1st May 2011
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I had a Focus 1.6 tdci as a stop gap, the 110hp version.

Averaged around 53mpg from a tank, dropping to 47mpg in the winter. Was always over 500 miles to a (small) tank, that was filling up with showing 70/80 miles remaining.

To make it economical you had to be on the turbo, changing at 2000rpm the turbo is hardly spinning and the cars struggling.. Using a light foot on boost gave best economy.

paulmoonraker

2,850 posts

192 months

Sunday 1st May 2011
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The Focus is not deigned to be a mile muncher, so its not mapped just for economy. I had a 1.8 Zetec Diesel and now have a Mondeo 2.0 TDCI. The latter is far better on fuel both round town and on a run.