Cold Weather Diesel Fuel Additive

mowermech wrote:

Wes Tausend wrote:

nevadanick wrote:
Your truck and its fuel dont know what windchill is. Only ambient temps affect it.

I believe an engine will cool down quicker in moving air. Same principle as a radiator fan.

Wes
...

True. However, it will cool ONLY to the ambient temperature. The "wind chill" only effects exposed skin. The engine will NOT cool to the -50 (or whatever) "wind chill".

:h I had thought for years that wind chill did indeed affect fluids in the vehicle, but you folks had convinced me otherwise over the years here on the forum.

BUT, and this is a big BUT, my thinking has changed somewhat again.

Seems my current vehicle has an oil temperature gauge (2011 Ford F350 King Ranch with 6.7L diesel).

The oil temperature gauge has consistently shown a temperature below that of the outside ambient temperature on any given day that I start the vehicle. My vehicle sits outside, and is NOT garaged, thereby exposing it to all elements.

Now this is interesting to me, but not yet of use more than anecdotal at the moment. This is because I have not yet checked these oil temperature readings versus the current wind chill readings for my area.

However, as I said, the consistent below ambient temperature readings I am getting surely has me curious. Also, these temperatures are shown for the oil without the vehicle being plugged in to its factory block heater.