GM 6.6 Duramax V8: Complete Expert Guide to Performance, Reliability, Common Problems & Maintenance
Why is the GM 6.6 Duramax V8 simultaneously praised as the most capable heavy-duty diesel in America—yet feared for its emissions system complexity? Since 2001, the Duramax 6600 engine family has powered millions of Chevrolet Silverado HD and GMC Sierra HD trucks across six distinct generations. Now in its L5P configuration, the 6.6L Duramax delivers … Read more