Cold weather = bad gas mileage?

[Andrew7dg]

Originally Posted by niterydr

Air and fuel molecules need to find matching dancing partners. If you have 1470 air molecules and 100 fuel molecules, then you have a 14.7:1 afr.

and BOOM!!


Had a question about heat coming into the car from the heater. It seems like my car is always kind of cold. It doesn't get truly warm until it is on the highway. I mean I get heat out of the car pretty soon but not hot temperature like it is on the highway. I removed the A/C condenser because of weight and that opened up the radiator for more cooling. Did that have anything to do with it? Do I have a bad thermostat or is the engine running that cool when around town? Coming off the highway it stays warm.
Fluid level is good also.