GM Increasing Heavy Truck Production Despite Rising Fuel Prices

Michael Strong
by Michael Strong

Rising gas and diesel prices haven’t slaked the thirst for General Motors’ heavy-duty pickups, forcing the company to increase production of its Chevrolet Silverado and GMC Sierra HD trucks.


Beginning in June, GM plans to shift production, already at three shifts in the Flint Assembly Plant in Michigan, to five days to six days a week, according to  a report by the Wall Street Journal. The plant currently builds about 1,100 of the 2500 and 3500 versions of the Chevy and GMC full-size trucks daily.

The company does build those trucks at its Oshawa Assembly Plant in Ontario, Canada, but tariffs on those trucks makes it cost prohibitive to build them there versus paying overtime at the Flint plant. GM told the WSJ the increased production in Flint isn’t pulling any from Oshawa.

GM officials said the reason for the production increase is simple: to meet demand. The automaker’s happy to churn out more heavy-duty trucks because they are highly profitable.

The war with Iran has caused gas and diesel prices to jump significantly. The average price of gas is now $3.95 per gallon, having risen 2.4 cents in the last week. However, according to GasBuddy.com, it’s risen 97.9 cents during the past month, and 83.8 cents from a year ago at this time.

Diesel prices are up too with the national average price of diesel rising 14.3 cents in the last week, to $5.369 per gallon, the highest level since July 27, 2022.

“Gasoline and diesel prices continue to climb to multi-year highs as the effective closure of the Strait of Hormuz curtails the flow of millions of barrels of crude oil each day,” said Patrick De Haan, head of petroleum analysis at GasBuddy. 

“The situation remains highly volatile and unpredictable, but upward pressure on fuel prices is likely to persist as long as global oil supplies are constrained by the continued disruption in the Strait. We’re likely to see the national average for gasoline push beyond the $4-per-gallon mark, while diesel could approach $6 per gallon and potentially set new records if conditions fail to improve. 

“Americans have already spent nearly $8 billion more on gasoline over the past month, a trend that poses growing risks to the broader economy, while surging diesel prices may begin to reaccelerate inflation.”


[Images: GM]


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Michael Strong
Michael Strong

Michael Strong has spent more than 25 years writing about the automotive industry. A Detroit-area native, he’s written about everything from local car shows to product reviews to financial news. Currently he writes and edits for a variety of national and local publications. He’s also a longtime member of the Automotive Press Association and the International Motor Press Association, and a graduate of Georgia Southern University. Hail Southern! Despite a love for ’70s land yachts and BMWs from the late ’80s and early ’90s, his personal vehicle is neither of those.

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  • D D on Mar 31, 2026

    No amount of killing in Iran is enough to kill revenge filed hate from a people. Bombing didn’t defeat Britain, Vietnam, Iraq. We will never be able to control the unbridled hate they have for us.


    no matter how many bombs or troops we have.

    • See 1 previous
    • Normie Normie on Mar 31, 2026

      Hatred of the West is the only politically cohesive force they have. Otherwise they're just jihadding each other.

  • Normie Normie on Apr 01, 2026

    I want to be the new Jeff, dammit! He gets 70% of the responses on this site.

    I'm perfectly qualified, too. I'd have dodged the Vietnam draft if it had lasted one year longer.

    • See 2 previous
    • Original Guy Original Guy on Apr 02, 2026

      Your application has been submitted to the Bored of Jeffs.


  • Peeryog Everytime I see one I am reminded of the current Santa Fe. And vice versa.
  • Original Guy I watched that Moscow parade thing. (With the Cyrillic captions because my Russian is a little rough.) I won't give the whole thing away, but it started off with a couple of dudes riding around in stupid useless convertibles, standing up like Hitler, who I'm pretty sure was an actual Nazi. They drove around in circles and kept stopping to ask if anyone had seen all the missing military equipment, and all the guys kept moaning back, that no, they hadn't, ask the next section of guys.They looked around for someone shorter and sicker-looking than Putin but they were unsuccessful so they let him speak.The North Korean military was there, I guess the invasion has begun. The North Korean guys were skinny but their rifles were nicely polished, I guess they have plenty of time on their hands between meals.Some of the Russian military guys carried little white flags, I assume they keep those handy in case they run across any U.S. Marines.
  • Marc J Rauch EBFlexing on ur mom - Ethanol is compatible with more types of rubber, plastic, and metal than gasoline and aromatics. This means that ethanol is less corrosive. The bottom line is that long before ethanol could have any damaging effect on any engine component, gasoline and aromatics would have already damaged the components. And the addition of ethanol doesn't exacerbate the problems caused by gasoline and aromatics; it actually helps mitigate them.
  • Original Guy Today I learned that a reverse brake bleeder (and a long borescope) can be helpful if you are autistic and don't have any friends and no one wants to work with you to bleed your brakes. Also it is quick, once you figure out the process.When Canada assembled my truck back in circa 1995, they apparently used a different clip to attach the brake pedal (and switch) to the brake booster than what is technically called for. It is tough to realize this when the spring steel clip flies off to who knows where. Of course I ordered the wrong clip trying to match the style that I saw buried up in the dash before it flew away. My truck now has the 'correct' clip, everyone can relax.I ordered some more brake fluid (DOT 3, nothing fancy) but it turns out I still have two fresh bottles (my shelves aren't empty, I just have too many shelves).Went to install my fancy new Optima YellowTop battery and it turns out I need a new side post terminal bolt. (Yet another order placed, bring on THE TARIFFS.) It would be a shame to strip out the threads on a nice new battery, no?Good news: The longer it takes me to get my truck started again, the more I save on fuel. 😁
  • Normie Weekends here would be a great time for everyone to join in praise of dog dish hubcaps on body-color matched steelies!
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