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It's been -12C* to 0*C lately.....my pre-heaters cylcle for about 3 minutes on cold start. They will also come on when doing a restart after driving for 15 minutes, although they might only cycle 3 or 4 times. This is when the temp guage shows about 1/3 on the scale, so the block is not cold. Must be the temp of the outside air.
I don't think anything is wrong....you are just noticing it more closely.
Mine is an 07 5.9 cummins.

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Dudes, wind chill factor is for human beings. A 10 degree wind won't cool below 10 degrees no matter what you do.
Now to the human body, a 10 degree temperature with a 10mph wind will cool the human body the same amount as a lower temp in still air. THAT lower temp is the wind chill temperature. But even at -40 wind chill temp, and if you stood still until you turned into a block of ice, you would be no lower in temp than the actual temperature you measure with a thermometer.

R.

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Don't be confusing us with the facts. This is Moparts, we don't allow facts to disrupt what we collectively think.
If the windchill says its -40, and it feels like -40 when your standing outside, then it must be -40. Gene

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Dudes, wind chill factor is for human beings. A 10 degree wind won't cool below 10 degrees no matter what you do.
Now to the human body, a 10 degree temperature with a 10mph wind will cool the human body the same amount as a lower temp in still air. THAT lower temp is the wind chill temperature. But even at -40 wind chill temp, and if you stood still until you turned into a block of ice, you would be no lower in temp than the actual temperature you measure with a thermometer.

R.

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Don't be confusing us with the facts. This is Moparts, we don't allow facts to disrupt what we collectively think.
If the windchill says its -40, and it feels like -40 when your standing outside, then it must be -40. Gene

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