A GMC Sierra 1500 owner is stunned that his diesel truck delivers a "shockingly good" 23.5 MPG on logging roads, even with ...

General Motors and Allison Transmission share a long history, but that's all going to change at the end of this year. Here's ...

After more than two decades working together, General Motors and Allison Transmission are officially splitting up.

When GM launched new-generation trucks for the model year 2020, the Allison automatic was gone. The trucks still got the badge, but it was a new 10-speed automatic jointly developed by Ford and GM. So ...

Next year, heavy-duty GM trucks will lose their Allison badges, even though the transmissions themselves won't change.

Having worked through the data, we may have just found the most reliable diesel engine going into 2026. As it stands, there are five diesel engines on sale in the USA today going into next year, each ...

Break up alert! General Motors is done with Allison Transmission as their contract ends. They'll no longer wear that ...

With four engines and a range of configurations, the 2026 Chevy Silverado 1500 offers competitive tow ratings, and now, GM ...

In November 2025, Chevy Silverado HD offers low-interest and long-term financing, and $1,500 off both 2500 HD, 3500 HD ...

A 2020 GMC Sierra owner is having buyer's remorse. He wishes he had skipped the Sierra and gone with a Silverado. It's all ...