Scd
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Hi there , got a 1.2 2008 gp and can't help but keep looking at my mpg . At the min I'm getting 46 mpg on a normal drive and 49 mpg on the motorway ... 
Technical 46 mpg
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Technical 46 mpg
Scd
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Sorry wrong category ......
The Twins
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Driven VERY carefully I've achieved 60mpg but my wife threatens to get out (whilst I'm moving....it wouldn't hurt) if I carry on driving so slowly......I'm able to get 46mpg when she's not a passenger and I'm flying up the motorway or round London streets.
So, you see, it really depends on how hard you drive the thing, and you dont have to drive it much over 55mph to have a significant effect on fuel consumption.
But the VED is only £30 so keep smiling.
So, you see, it really depends on how hard you drive the thing, and you dont have to drive it much over 55mph to have a significant effect on fuel consumption.
But the VED is only £30 so keep smiling.
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No need to trade it in, I'm seeing 44MPG on my two month old TA, driven hard with bursts of hypermiling to make up for it (eg in traffic). A/C uses 4-5MPG so once I can switch that off I'll be seeing 48-49. Once broken in 50+ should be easy.
All depends on the quantity of lead in the right boot!
Seen a few people say this. By comparison our Abarth, which still has a tight engine with under 1500 miles on it, is getting 32 driven with some spirit around town and 42 on a run...
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Put some more miles on your car, and try harder
I get 46-47 without trying too hard now, and have some fun too. (And that's with A/C on all of the time - I have climate).
The Twins
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It's also got a lot to do with your local 'terrain' and they type of journeys you do.
I can get as much as 62mpg on a 200 mile journey or as low as 38mpg from my TA.
It's driving style combined with the type of terrain, flat, hilly, lots of junctions etc...
Strangely, I find 'eco' mode makes more difference on the m'way than around town.
I can get as much as 62mpg on a 200 mile journey or as low as 38mpg from my TA.
It's driving style combined with the type of terrain, flat, hilly, lots of junctions etc...
Strangely, I find 'eco' mode makes more difference on the m'way than around town.
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Rubbish, I've yet to see anything concrete to support this, both from personal experience and that of many others. A modern AC system will have very little effect on a vehicles MPG.
You know it switches off when it's cold outside right?
You know it then kicks back in when the temp going through the internal condenser increases to the correct temp right?
ac does have an effect, but not 4-5mpg....
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0.6-0.8 Litres per hour according to the OBD, or 4-5 MPG @30mph.
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Rubbish, I've yet to see anything concrete to support this, both from personal experience and that of many others. A modern AC system will have very little effect on a vehicles MPG.
You know it then kicks back in when the temp going through the internal condenser increases to the correct temp right?
Apparently people in Suffolk drive around in temperatures that might be below freezing and then wonder why the A/C has little effect on MPG. If you live in England and have the climate on all the time, what would be the A/C's duty cycle over a year's driving? Maybe 30%? 30% of 4MPG is about 1MPG. Doesn't change the fact that when the compressor is actually ON, it's consuming 4-5MPG or 0.6-0.8L/Hr at idle. Obviously duty cycle is what's going to determine the A/C's effect on MPG. Since I run the A/C in summer at or close to 100% duty cycle it's using the full 4-5MPG. So yes, if someone say's they've got their A/C on 'all the time', I find that funny, particularly as it relates to MPG.
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I'm sorry, but in my experience a/c doesn't use 4-5mpg....
A/C uses more fuel than most people think; the amount depends on the cooling effect that is needed. The amount of extra fuel used depends on the work done by the compressor; its effect on mpg, in percentage terms, also depends on how effectively you use the rest of your fuel, so if you drive economically, you'll notice a greater percentage difference. On both my cars, running with the A/C on in summer reduces my fuel economy by 6-10mpg.
The extra fuel used by running the A/C depends on the time it's running, not the mileage covered. UFI's figures of 0.6-0.8l/hr sound about right; on that basis, pressing the button costs you about £1/ hr.
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Do remember that even on a hot day, the A/C compressor won't be running (and therefore drawing load from the engine) for more than 50% of the time, otherwise the evaporator will be frozen solid. (providing the correct amount of refrigerant is in the system).
As you're driving along, you'll hear the compressor clutch clicking on and off as the system is controlled in a feedback loop.
As you're driving along, you'll hear the compressor clutch clicking on and off as the system is controlled in a feedback loop.
