Just about everyone knows that we see mpg drop in cold weather. Mostly it seems to be put down to a combination of cold engine/intake air and winter fuel mixes. However, I was thinking about it today coming back from skiing. This is a road I drive frequently all seasons, and I know just about what speeds I'll reach without using the throttle.
What I noticed today, though, is that even coasting in neutral I don't reach anywhere near the same speed as in summer (in gear with a bit of regen), therefore there must be some other factor at work. Seems like it could be tires taking more energy to flex (they're at 50 psi), cold lubricants in bearings or transmission, or maybe brakes tightening up because of cold. Any thoughts?
I think I'm getting lower mpg this year than previously. It seems almost as though the car had been dipped in molasses :-( I did get new tires on all four wheels last month, but they're the same Potenzas that were original equipment.
What I noticed today, though, is that even coasting in neutral I don't reach anywhere near the same speed as in summer (in gear with a bit of regen), therefore there must be some other factor at work. Seems like it could be tires taking more energy to flex (they're at 50 psi), cold lubricants in bearings or transmission, or maybe brakes tightening up because of cold. Any thoughts?
I think I'm getting lower mpg this year than previously. It seems almost as though the car had been dipped in molasses :-( I did get new tires on all four wheels last month, but they're the same Potenzas that were original equipment.