To us, it would be a bit late for the shelved 4.5L Duramax Diesel project that was ceased in 2009 to make a comeback. It’s 2014 now, and the diesel game, along with GM’s engine technology, have evolved. Yet GM Vice President of Global Powertrain, Steve Kiefer, hints at just the thing, saying he’s the words “dust off” the 4.5L diesel engine have been thrown around lately.
This would ultimately mean a diesel engine option for its half-ton light duty trucks, and perhaps other full-size models to follow. Though while we fully believe a diesel half-ton GM truck will eventually come to fruition, we doubt it will utilize the 4.5L Duramax engine, which if you ask many engineers, is not leaving the R&D lab.
Ironically, it was a diesel engine offering that cost the 2014 Chevrolet Silverado 1500 and 2014 GMC Sierra 1500 Motor Trend Truck of the Year honors to Ram’s 1500 EcoDiesel contender. Yet it’s not that GM seems to be shying from diesels in the truck market, as we look at the all-new 2015 GMC Canyon and 2015 Chevrolet Colorado midsize trucks slated for 2.8L Duramax diesel engine power come next year.