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2019 Chevrolet Colorado Diesel Takes a Mysterious Fuel Economy Hit

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2016 Chevrolet Colorado Duramax

Till an automaker comes together with one thing higher, your least expensive guess for freeway fuel financial system in a pickup is the Duramax diesel-powered Chevrolet Colorado and its GMC Canyon twin. The full-size Ford F-one hundred fifty with diesel V6 matches it in financial system, however not price.

Boasting a 30 mpg EPA score for freeway consumption, the oil-burning midsizers command a premium over their lesser siblings, however make up for it with thriftiness and heaps of torque. The two.eight-liter inline-4 generates 269 lb-ft of twist — much more grunt than the 275 lb-ft on supply from GM’s three.6-liter V6.

Nevertheless, there’s a thriller afoot. The EPA ratings for the most recent Colorado and Canyon diesels present a drop in metropolis and mixed effectivity for the 2019 mannequin yr, regardless of the powertrains being a carry-over.

As not all 2019 Colorado and Canyon fashions have acquired a score from the EPA, we solely have the 4-cylinder fuel fashions and the rear-drive diesel to go on. (H/T to Bozi Tatarevic, by the best way.)

The two.5-liter fashions see the identical score as final yr, however the four×2 diesel, outfitted with the identical 2.eight-liter and 6-velocity automated the 2018 fashions (to the best of our information), sees its fuel consumption drop by 2 mpg within the metropolis and mixed cycle.

Whereas the 2018 four×2 diesel carried a score of twenty-two mpg metropolis, 30 mpg freeway, and 25 mpg mixed, the EPA charges the 2019 mannequin at 20 mpg/30 mpg/23 mpg. The 2019 Canyon diesel, of which solely the four×2 model carries a score, sees the identical change. What’s the deal? And why the two mpg drop in mixed financial system whereas the freeway determine stays the identical?

We’re not conscious of any modifications to gearing, axle ratio, or engine tune between the 2 mannequin years, making the EPA’s score a head-scratcher. After reaching out to Common Motors on Monday, we have been advised the automaker was wanting into the difficulty, and would get again to us when it had extra information. Thus far, no phrase, however we maintain out hope for an evidence. We’ll ship that when it arrives.

Within the meantime, there’s nonetheless no official phrase on the fuel financial system of two thrifty new GM engines: the diesel inline-six sure for the 2019 Chevrolet Silverado and GMC Sierra, and the turbocharged 2.7-liter “Tripower” inline-4 sure for a similar fashions. It’s GM’s hope that Ford’s mild-obligation diesel takes a backseat to the Basic’s effort.

[Image: General Motors]

– 2019 Chevrolet Colorado Diesel Takes a Mysterious Fuel Economy Hit –

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