2021 2500 Cummins unload around town is 14-15MPG, only have just under 1000 miles on the truck. Will do a long unloaded trip next weekend. No loaded data yet.
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I have a 2021 2500 Big Horn and Apple CarPlay works fine, only issue is when playing music from the Music app, I get skipping. Like a bad vinyl record. Tried it with 3 different iPhones and the cable is new. USB-C to Lightning.
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