Well, we took the Big Guy to the property this weekend
105 miles each way....we went from 4500 ft up to 7300 ft, down to 6300 ft up to 7300 ft down to 4000 ft up to 5600 ft. Truck seemed to have a miss once we crested the the 2nd 7300 ft pass. Rick pulled over, put it in neutral and revved the motor, and seemed fine. Had a little blowby come into the cab from the stereo hole in the doghouse, but it quit, so we continued on with no issues.
We took a different route home 5600 ft down to 4000, up to 7300 (long pull), down to 6200, up to 7700, then back to 4500. Had a little miss once we hit about 5000 ft, and then it cleared up.
Temps went from 140 to 195, never went much above.
If anyone has advice on driving in the mountains, I'd love to hear it. We both tried to stay out of it, but it seemed to be happier at a higher RPM.
Drive by temp gauge or drive by tach? How hard can you push it?