"http://www.timesonline.co.uk/tol/driving/used_car_reviews/article3552994.ece
Cold engines use more fuel and produce more co2, that's is why you are advised not to do short runs!
Cars that are kept outside take longer to heat up and use more fuel than our garaged cars.
Latest BMWs have temperature controlled engine bay vents to aid engines getting to optimal operating temperature quicker.
Mumsy's run about will not tow my caravan and is no fun to drive.
We could be inconsiderate by your terms g, we walked or cycled to school with our children when locals here and elsewhere drive the short distances.
Are Mrs C and I expected to give up everything for some fairy eco babble as others pretend to be eco saviours and then jump in their eco car for a 5 minute walking time trip to the local offy for a bottle of eco friendly Aussie Chardonnay after a busy day ferrying kidly wrinkles about.
I'm retired. I was an Auto industry test driver testing new cars for many manufacturers.
And I even managed to pick up a few things avout cars, driving and economy over thirty years of pounding test ground tracks."
You would think actually knowing all this, instead of generalising without putting any figures in! you would understand what you are actually saying!
But alas, that's not the case, Yes cold engines, do pollute more,and also use more fuel, indeed petrol engined cars are worse as they run enrichment cycles, which richen up the modern petrol car fuel delievery by upto 20%. Diesel in theory do not use a choke device although again modern ones will en richen slightly by a very few %.
But you don't do figures do you! so you come up with generalised statements, that have no foundation. For instance you car is less polluting than the school run driver!So you assume that all cars pollute the same, and being as you keep yours a few degrees warming you are less poluting. Poppy ****. You car at best produces 200g/m of C02 on average, this is matched by worse MPG, than say a Fiat puto 16v [ old say 2000 model] that nicely fits in with the old banger mentallity. It produces 142 CO2 g/km.
Even when cold and being en richened by 20%, that still makes it average CO2 figure 170! still a far better figure than your at best! And just remember that's a petrol car, lets not get on to normal diesel cars.
Now nobody has criticised you for what you drive,nobody has had a go at you because you drive a 4x4, so lets not get into that one.
The only gripe I have is when for whatever reason you started claiming your 4X4 car was better than the normal school run car on mpg, based on absolutely no physical provable facts.Indeed you made the point of meaning small cars, as well as large car i mentioned. Although you must see the funny, as you printed "my 4x4" statement, because you were actually talking about it whilst it was in 2wd mode, Indeed all switch able 4x4 Co2 figures are based on 2wd, and not 4wd, otherwise the figures would be a good 15% worse.
Enjoy your X3 apparently they are good cars...
or those driving to the gym to keep fit.
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