Why GM truck owners are demanding thicker oil in future V8 engines

Several GM truck models were recalled due to engine issues, something that users say might have ben a result of the use of low-viscosity motor oil.
Carscoops

GM’s V8 Engine Problem Is So Bad It’s Wrecking Thousands Of Trucks And SUVs

General Motors is recalling hundreds of thousands of trucks and SUVs equipped with its 6.2-liter V8 engine. It turns out some internal components may have manufacturing defects, the kind that don’t ...
GM Authority

GM 6.2L V8 L87 Engines That Need New Oil Viscosity, And Those That Don’t

Following a series of lawsuits, investigations, and engine replacements, GM issued a safety recall for certain full-size trucks and SUVs affected by an issue with the 6.2L V8 L87 engine. The problem ...