U.S. Sen. Cynthia Lummis on Tuesday wrote a letter to President Donald Trump, urging him to pardon Wyoming diesel "delete" mechanic Troy Lake.
The 7.3 PowerStroke, 5.9 Cummins, and 6.6 Duramax, are all iconic diesel engines, but how do they compare? Here's a side-by-side look from power to reliability.
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