it's got to be the density, imagine driving around at -190°C, ther air will mostly be liquid, that drag would be ridiculous!
do they still put benzene in diesel in the winter to stop it waxing?
Dunno, but my average has gone from 52 to 39 after refuelling last week. Not impressed, though inclined at the moment to blame Esso instead of the cold weather.
Mine does, but I put it down to the simple fact that as I'm only travelling 15 miles to work each way, the engine doesn't get to it's most efficient working temp as quick as in summer. As well as what Doctor P said.
Diesel Golf here.
Dropped about 10% (and it was serviced in November).
Running the heater and fan on and up higher and longer as misting up and to defrost the windshield. More use of wipers to clear windscreen just to see. Electric on the rear windscreen (and mirrors) plus engine running while scrapping off the ice must contribute...
🙂
There is some amount of pish talked on here.
