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: Ranked as the most reliable modern light-duty diesel, offering impressive fuel economy (up to 33 mpg highway) and smooth operation for daily driving. Top 10 Most Reliable Diesel Trucks in North America
: Often called the "holy grail" of modern Rams. It uses a robust common-rail fuel system but lacks the complex emissions hardware found in later 6.7L models. best used diesel truck to buy
: This is the top choice for a more modern used truck. It features a significantly strengthened block and a more reliable Denso HP4 fuel pump that fixed previous generation issues. : Ranked as the most reliable modern light-duty