I was fortunate enough to take a new position at my company 4.5 miles from my home 5 years ago. My last commute was 22 miles one way in sales and it was before I was even thinking about bicycle commuting and I was doing it in a 3/4 ton suburban with a 454 that we used to pull our camper. (Sold both.) Just the savings in fuel was like a significant raise. Closest job to home I have had since being a pimple faced teenager when I worked at BK in the 80's. In Dec 2010 my office moved.......2 miles closer LOL
2 of the people I work with have over a 1 hour drive in every morning. Summer my 4cyl 4Runner goes about 6weeks on a tank. The family mini van, The Blown Bean (supercharged 4cyclinder Previa), goes about 2-3 weeks depending on how many bikes I chase after.