Just wondering what gas mileage that full size Chevy truck owners are seeing with their 5.3 liter V8. I have a 2006 4x4 with the 5.3 liter aluminum engine. I only have around 1,600 miles on it at this time, but am seeing an average of 17.5 MPG. I drive about 40 % highway and the rest is state routes and around town. I'm not unhappy with the mileage as my 99' 4x4 with the 5.7 liter would only get around 15.5 MPG. Just curious as to what others are getting with the 5.3 liter.
Thanks, Brian