look on the bright side, you're getting more air into your engine... meaning a slight bit more power than when its hot.

this might just apply to me, but i like driving in the cold better. i feel that the engine gets less efficient when its hotter.

 

then again i'm not someone too knowlegable with mechanics and chemistry... since the field i'm pursuing is healthcare

 

We just discussed this last week.

Winter fuel additives and some engines actually run less efficient when the weather is cold; i.e the Insight.

 

cooler air is denser = more aredynamic drag which is significant at highway speeds. thats why bonneville guys like to make their runs at the hottest part of the day even if the higher air temps results in less power. it's more than compensated by reduced drag.

 

Um...

Yes, technically cold air is denser than warm air, but...
this only makes a discernable (air density effect on drag)
effect when travelling a very high speeds, like at the
Bonneville Salt Flats. Remember, aero drag depends on the
square of the velocity and then on the density of the
fluid (in this case air). The density of air doesn't change
that much over say 0 deg to 20 deg C. (only about 7%). So,
at very high speeds the 7% makes a big absolute difference.

F= 1/2 pv2ACd, where p=density, v=velocity, A=area, Cd=coeff. of drag

Hopefully, this won't make a difference on your way to work on a very cold
the morning, unless you drive the Thrust SSC

 

You lost me at UM...