11 stories across all model years, newest first.
October 16, 2026
Ford’s proposed pickup oil specification and EPA27 strengthen my prediction of a larger Power Stroke by 2029. Could the earlier 8.0L claim be right?
Read story →October 8, 2026
Could saving money on red-dyed diesel cost you a diesel truck warranty repair? A reader asked whether putting red fuel in his Chevy pickup would void its factory warranty. That sounds like a simple yes-or-no…
Read story →October 6, 2026
The 2027 GMC Sierra HD diesel price is going up, but there are two different numbers buyers need to understand. The new 8.3L Duramax option costs $11,400, up $1,410 from GMC’s listed 2026 diesel charge.…
Read story →October 5, 2026
Two DEF injectors. A redesigned exhaust system. Regeneration you can initiate while parked or driving. There is a lot more to GM’s new 8.3L Duramax than its horsepower and torque numbers. During GM’s powertrain event,…
Read story →September 24, 2026
GM’s new 8.3L Duramax leads Ford and Ram in rated output. Compare all three HD diesels and see what the numbers mean for towing and ownership.
Read story →September 24, 2026
The 2027 GMC Sierra HD gets an all-new 8.3-liter Duramax diesel with 555 horsepower and 1,230 lb-ft of torque, an updated 6.6-liter gas V8 and new steering and braking hardware. Adaptive cruise control also becomes…
Read story →September 24, 2026
With all the attention on GM’s new 8.3L Duramax, I did not want the gas engine to get lost in the shuffle. I spent time beside the updated 6.6L V8 at GM’s powertrain event and…
Read story →September 24, 2026
GM’s new 8.3L Duramax is a big engine, and I mean that literally. Walking around the display at GM’s powertrain event, I wanted to get past the headline numbers and see what truck owners will…
Read story →September 21, 2026
GM is giving heavy-duty truck buyers an early look at its next diesel engine. The automaker released a Mongoose teaser video for the new 8.3-liter Duramax turbo-diesel V8 headed to the refreshed 2027 Chevrolet Silverado…
Read story →July 22, 2026
The 2020-2026 model years mark the fourth generation for the Sierra 2500 as the brand’s heavy duty pickup truck. Known for its versatility and luxury interior, the Sierra three-quarter ton is a favorite among HD…
Read story →June 4, 2026
A recall for 2,785 2018-2019 Silverado 1500/2500/3500 and GMC Sierra 1500/2500/3500 vehicles due to an issue with roof-rail airbags. General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2019 Chevrolet…
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