if you use fuel consumption instead fuel economy to look at it the differences can be small. I have both auto and manual transmission vehicles, and for me perso

if you use fuel consumption instead fuel economy to look at it the differences can be small. I have both auto and manual transmission vehicles, and for me personally, I almost always beat the rated consumption numbers in manual and rarely beat it in the auto. This just boils down to how I drive; I end up going much slower when driving manual (in a small Ford Ranger pickup) than I do in either auto.