Diesel engines are the backbone of the commercial vehicle industry. They haul freight, power equipment, and keep vital operations moving. But as diesel technology has advanced, so too has the ...

The president pardoned a Wyoming-based tuner who was found guilty of deleting emissions systems on diesel trucks.

With engine manufacturers recommending oil change intervals in newer equipment as long as 75,000 miles, owner-operators ...

Troy Lake served seven months in prison for disabling emission control devices in at least 344 heavy-duty commercial trucks.

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