For those buyers out there who still want a diesel-powered unit of the Cadillac Escalade luxury SUV, three new units are on ...

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

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

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 ...

A bona fide supercar, this incredibly fast coupe and convertible was powered by a General Motors diesel truck engine and ...

From luxury models to electric giants, discover the top 10 heaviest SUVs ever made, with curb weights exceeding 6,000 lbs.

After more than 20 years of collaboration, GM and Allison Transmission will end their licensing agreement at the end of 2025.

See the most impressive engines of SEMA 2025 in Las Vegas. From radical customs to flawless builds, these powerplants define ...

A 2022 Chevy Silverado with 47k miles passes the L87 6.2 recall with "flying colors" after a 0W-40 full synthetic change. The owner reports higher oil pressure at idle. Is your truck next? A 100k ...

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