DONFRAMAC
November 21, 2009, 3:11 am
[quote name='GIDDLEPIN' post='945743' date='Nov 20 2009, 08:30 PM']I use the fuely site for our cars [url="http://www.fuelly.com/driver/slapa/iq2"][b][color="#0000FF"]THIS[/color][/b][/url] is the fuel consumption from new of my wife's IQ2 (manual), I'm hoping it will improve once it settles down and the weather improves.

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My '58 reg Fiesta Mk 6.5, has dropped 5 MPG, since the cold weather, due to me using the heater, + A/C, + heated front screen to de-mist the insides of the windows. If I used a cloth, as my wife does on her Aygo, I would save a bit, but the fuel-injection still ramps-up the fuel dosage, just as a choke-knob would, in cold weather, but the engine will heat up quicker if you can hold-off from valving on the heater for a while after a cold start, just rely on the fan-blast to your screen etc., to see properly, + the rear demister. (although that takes power, just as the A/C does.)
P.S., diesel cars also have a cold-start fuel enrichment, in addition to the glow-plugs, and are slow to heat up due to higher fuel-efficiency.
I have been thinking of improvising a radiator blind. ( There used to be roller-type blinds on very old cars, and air-cooled Citroens had a plastic unit that got fitted outside the grille of my 1978 model GS estete, for the duration of the winter;-- you would get zero heat off the heater otherwise, because it came straight off the cylinder-barrel fins. The other small Citroens also had plastic winter air-intake-baffles.)
The quicker you can drive-away after starting the engine, the better, use your garage, or get a windscreen tie-on insulator. Or park facing the rising sun, as my wife's rear windows get demisted by the sun most mornings, but the radiator faces the prevailing wind, so the front screen is misted or frozen, regularly, costing time and fuel.