The diesel truck rumor mill is ever-churning. Whether it’s hearsay about a new manufacturer joining the fray or a tall tale about emissions deletes becoming legal, people love to talk. Arguably, the most frequent rumor I see is that we’re about to get a larger Cummins, Duramax, or Power Stroke engine in the next generation of Ram, GM, and Ford pickups. To find out if those claims have any merit, I asked the engineers who developed those powertrains: Would that even make sense?
Some folks believe that more displacement is the answer to increasing power while keeping tailpipe emissions in check. The theory is that larger engines operating at lower stress can make more output without relying on diesel particulate filters to capture as much soot or diesel exhaust fluid to remove as much nitrogen oxide. As it turns out, there’s some merit to that idea, but it’s far from a silver bullet.
Detroit’s Big Three haven’t changed the size of their diesel engines in a long while. Ford has been working with 6.7 liters of displacement since the 2011 mode …
Go to Source
Author: Caleb Jacobs
