The 6.7-liter Cummins diesel is among the top powertrain picks for the Ram 2500 HD, earning it a considerable following. But the fifth-generation version hasn’t exactly been spotless. Owners have complained about valvetrain issues, with teardowns revealing wear on rocker arms and lifters, as well ...
America’s Heavy EV Problem May End With Drivers Paying More
- 06/23/2026, 9:35 PM
- autoblog.com
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