Anyone else getting closer to 10/11 mpg in snow?
- Thread starter alexman
- Start date
The constant freezing temperatures won't be helping. If you reset the counter once the engine has warmed through a bit, a more normal mpg should resume. Not driven mine for z few weeks.
Liverpool
29.1 mpg here, reset it about 2 weeks ago. THat' carrying a boot load of weather related gear around (overnight bag, shovel,multiple pairs of shoes and jackets) in case I get snowed in somewhere and doing speeds up to 69.99 ONLY (of course 
). However, once the engine is started I usually don't stop for 50+ miles so lots of warm running. Also using small diameter winter tyres also which probably affects the fuel consumption negatively.
I will assume you are doing town driving and not driving very far after each start?
). However, once the engine is started I usually don't stop for 50+ miles so lots of warm running. Also using small diameter winter tyres also which probably affects the fuel consumption negatively.I will assume you are doing town driving and not driving very far after each start?
lacroupade
Veteran
A lot of it will be down to the MAF sensing the much colder (and therefore denser) air and squirting more fuel in....my diesel 4x4 is practically leaping about at the moment because of it, but fuel consumption is down 15-20% even in 2WD.
I would suggest the only significant effect on mileage in cold temperatures is due to more fuel used during a cold start and more idling due to traffic issues. If you have to use a lower gear to push fresh snow, then you can use more fuel, but you will feel the extra resistance to movement, much like climbing a hill. When the snow is tracked, then you don't have that extra resistance.
Cold temperatures have negligible effect on mileage on a fully warmed up car (assuming winter petrol with a higher ethanol content is not being compared with summer petrol that some stations switch between here in Canada, but I always use E10 petrol year round). Just came back on a 300km trip today in -10C weather, the roads were clear and dry, I was cruising between 100 and 120km/h. Doing the same trip at the same speed in +20C weather gives me exactly the same fuel consumption - between 10 and 10.5 l/100km (27 to 28mpg).
Cold temperatures have negligible effect on mileage on a fully warmed up car (assuming winter petrol with a higher ethanol content is not being compared with summer petrol that some stations switch between here in Canada, but I always use E10 petrol year round). Just came back on a 300km trip today in -10C weather, the roads were clear and dry, I was cruising between 100 and 120km/h. Doing the same trip at the same speed in +20C weather gives me exactly the same fuel consumption - between 10 and 10.5 l/100km (27 to 28mpg).
