Its not a camshaft issue its a hydraulic lifter issue, which then takes out the camshaftCounterpoint: most modern gassers seem to have an unhealthy appetite for eating camshafts...
Gas on their own are the way to go for cold. Two years ago I was pushing snow on a -25*F day with a 1953 gas tractor. Both Bronco and F-150 started and moved out of their spots in the driveway so I could clear it and the carbureted Ranger even woke up after a two week nap to pull the Bronco out of a snowdrift.
It was afunmemorable day.
