A 2025 GMC Sierra 3500 AT4 owner is reeling after his brand-new diesel dropped from 24 MPG highway to a measly 17 MPG, and ...
A GMC Sierra 1500 owner is stunned that his diesel truck delivers a "shockingly good" 23.5 MPG on logging roads, even with ...
MAHLE Lifecycle and Mobility has introduced comprehensive gasket coverage for Duramax L5P 6.6L and Subaru FA24F 2.4L engines.
General Motors and Allison Transmission share a long history, but that's all going to change at the end of this year. Here's ...
Modern Engineering Marvels on MSN
GM Drops Allison Badging as Tariffs and Costs Bite
A lot of cost and a lot of chaos-that’s how Ford CEO Jim Farley summed up the current state of the US auto industry. The same turbulence now ripples into General Motors’ heavy-duty truck lineup, where ...
With four engines and a range of configurations, the 2026 Chevy Silverado 1500 offers competitive tow ratings, and now, GM Authority is taking a closer look.
From Ram Cummins workhorses to Toyota Hilux legends, these diesel trucks with manual transmissions redefine what it means to ...
This article covers a developing – and complicated – area, and doesn't constitute legal advice. Please let us know if you've feedback or questions we've not answered below by emailing ...
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