Quote:
Originally Posted by ecomodded
I have read that diesel motors run most efficiently on cold air and I have read that they run most efficiently on warm air.
Most who drive a diesel notice mpg losses threw winter. Could the cold ambient outside air be responsible ? or has it nothing to do with cold air and more to do with winter mixed diesel.
Here is some food for thought, if running warmer intake air causes higher combustion chamber temperatures could it mean a more complete (hotter) burn occurred?.  |
I would bank more on increasing the temperature of the fuel not the air.
Combined with a decent fuel water separator and filter there are many more possibilities/benefits with heated fuel.
Another good suggestion would be to preheat the motor and transmission with a block or blanket heater of some sort. That helps reduce the winter FE hit.
Cheers