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GM truck owners want thicker oil back for the next small block V8

GM truck loyalists are lining up behind an old-school idea for the next small block V8: bring back thicker oil. After years ...
GM Authority

GM Keeping A Close Eye On Duramax Diesel LZ0 Engine Issues

Quality issues related to the 3.0L I6 LZ0 turbodiesel Duramax are drawing more and more attention online, and in response, GM ...