After Chrysler and Nissan, GM will add a diesel option to their pickups, but it won’t be in the full-size Silverado and Sierra.

Now that Ram has a diesel option in the form of VM Motori’s 3.0L V6 and Nissan will be dropping a 5.0L V8 oil burner in their next Titan, it’s no surprise that General Motors will be putting a diesel in their next mid-size trucks, the Chevrolet Colorado and GMC Canyon.

Automotive News is reporting the new trucks will be powered by either a 2.5L or 2.8L Duramax four-cylinder, according to three sources close to the matter.

Chevrolet currently has a 2.0L diesel four-cylinder in the new Cruze which makes more horsepower and torque than the last four-cylinder powered Ford Ranger. However, in a very competitive and shrinking segment, GM has to really up the ante if it wants to sway people into buying a smaller truck. One way it can do that is with higher output numbers and improved fuel economy over its last generation trucks and those of its competitors, Toyota and Nissan.

Expect the new diesel mill to show up in the Colorado and Canyon a year after their fall 2014 launch.

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