The first RAM with a Cummins engine under the hood was launched in 1989 and has continued to evolve, now in it's fifth generation. In 2003, the popular heavy-duty truck offered the Cummins third ...

While 40-year-old engines might not be expected to be the most reliable today, a certain diesel engine has found itself with an incredible reputation.

Specifically, the Pentastar 3.6 liter engine, which has also been blasted across other social media platforms. One Redditor wrote, "The 3.6 Pentastar is the worst pile of [expletive] motor to grace ...