My TDi didn't seem to suffer in winter, not greatly anyhow. But it would be driven for close to an hour at a time, thus warmup time was minimized. [Plus it wouldn't warm up at idle thus I rarely did that.]
My gassers, they seem to fire up and go right to high idle, presumably to get heat into those cats. My truck takes a big whammy, lots of gear oil to warm up. [I saw that the 2019 Rams are running coolant to at least the rear diff. Link]
My gassers, they seem to fire up and go right to high idle, presumably to get heat into those cats. My truck takes a big whammy, lots of gear oil to warm up. [I saw that the 2019 Rams are running coolant to at least the rear diff. Link]