Good points. I was reading yesterday that GM's 5.3L engine still only uses 2 valves per cylinder. Yet, its fuel economy matches the ecoboost engine and beats the 5.0L V8 from Ford which uses 4 valves per cylinder. Makes you wonder that if GM would wake up and even modify or play with the 5.3, they'd get fuel economy figures that surpass Ford's offerings. Sometimes I think I should just wait until GM brings out this new 1/2 ton in 2013 before making a purchase choice. I even looked at their new HD pickups. They're really nice but that 6.0L V8 really eats up gas. When you compare a V8 to a turbo V6, beyond the turbochargers, what other increased maintenance would need to be done?