Starting in 2008, new diesel trucks were required by the EPA to include an EGR (exhaust gas recirculation system), which routes exhaust back into the combustion chamber to reduce temperatures, a ...

Spend any time in diesel truck Facebook groups and you’ll see people using code words like “weight loss” or “diet plans” instead of explicitly talking about deletes—yes, really.

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That rule applies to all cars, but it's especially important when it comes to shopping for a used diesel truck due to the frequency with which people remove, modify, or delete diesel emissions ...