GM’s New V8s: Tough Questions, Towing Surprises and Silverado Prices

Send us Fan Mail GM’s new V8 engines bring more power—and plenty of questions. Fresh from GM’s powertrain event in Flint, Tim Esterdahl breaks down what engineers told him, what remains unanswered, and what it means for truck owners. In this week’s Truck News Recap: • Dynamic Fuel Management (DFM), lifter concerns and the revised oiling system • Why GM is dropping the physical oil dipstick • Direct injection, port injection and intake-valve carbon buildup • Why the 6.6L V8’s towing rating su...