Neighbor traded a 2003 or 03 silverado for a new Toyota and has been disappointed with the milage. Says it is worse than his old truck by a couple mpg. I know the newer GM are better than those a couple years old. Dad has an 05 Sierra and I have an 01 and he gets 2 mpg better than I do. Different tires and gearing turn lower RPM for better milage. Don't notice and less power going into hills with his. Gunner | 
tundra vs. gm 1/2 ton
