My wife and I have very different driving styles; I drive slow and steady, often taking 20-30 seconds to reach cruising speeds, and Tiffany takes off like a rocket until cruising speeds. There was a time we were sharing a vehicle (because mine was a bucket full of buttholes) and I found that the vehicle would achieve 2-3 mpg better when I didn't drive it at all. I was perplexed and taking sharp notice of anything that could've attributed to her somehow being a better driver than me. I am biased, but I found nothing. I later decided it must be because of my slow driving style. So, I have set out to recreate the scenario and perform a test to confirm the above but I cannot for the life of me be consistent enough to get any useful results. I used to have an incredibly easy drive where I never had to romp the skinny pedal but now I simply must, pretty much daily, unless I want to wait until traffic hour is over to pull out... Now that I have given this more thought I realize no one is going to have a scientific answer, if anyone has an answer at all.. but I've already typed it up so here it goes.