Despite a dealer's promise that a known mechanical flaw was fixed in the new model, one 2025 GMC Yukon Denali suffered catastrophic engine failure at just 2,381 miles.

General Motors is currently investigating reports of an occasional misfire affecting vehicles equipped with the 3.0L I6 LZ0 ...

The next-generation small block could launch for the 2027 model year with displacements of 5.7 and 6.6 liters instead of the ...

GM Authority is hearing an interesting new detail about the potential displacement specs for the upcoming GM Gen 6 Small ...

While the Duramax engine family has been around for a while, only the LBZ can truly claim to be the Holy Grail of GM's heavy ...

Details about these two engines are relatively sparse, but a new report from GM Authority claims that the sixth-generation of ...

Diesel engines have long had a solid reputation for reliability, but these powerhouses have proven to last far longer than ...