There were no diesel small trucks available from major manufacturers for the 2014 model year. Chevrolet is expected to release a diesel powered version of the Colorado in 2015.
The Chevrolet Colorado looks to be the only smaller pickup truck with a diesel engine for the model year 2015. Chevrolet, Dodge, Nissan and Ford all offer full-size trucks with diesel engines. The Colorado, however, is set to have a smaller and more economical 2.8-liter diesel, according to GreenCarReports.com. The truck is set to be released in 2015, but will be a model year 2016 vehicle. There is no information available on fuel efficiency.