I just bought a Tundra 5.7 TRD Package and the mileage is fantastic! About 19 around town. EPA fuel economy estimates are never right because the sticker said 14 or 15 in the city and 18 on the highway. Where I live it's mixed driving and I still get 19. What does the brand new 4.6 get? I wonder if a cold air intake would increase the mileage even more.