To add to the oft asked question about fuel mileage for Sonata's, I just completed a 1400 mile trip with almost all of it on interstates through the mountains of Virginia and W. Va. as well as S.C., N.C, and Pa. I have a
2006 Sonata LX 4 cyl Automatic. I topped off when I left and returned and kept records of intermediate fillup amounts. Using GPS, I took the actual mileage covered and divided it by the actual gallons. I came up with 33.91 miles per gallon. Surprisingly, the on-board computer said 34.0 miles per gallon, which is darn close. My 'traveling average speed' was 67.9 mph. My tire pressures cold were set at 35psi, which is higher than recommended but that's another story about 'recommended' tire pressures. Don't want to start that up again. :o) Anyway, that's what you can expect under the conditions above. I went from Georgia up to Reading, Pa. It was cold up there and I even got to shovel some snow....... I thought I left that crap behind me when I moved south..Tom