To follow up on my post of Oct, 26, we took our 1357 mile round trip to Worthington (Columbus), Ohio via I-80, I-74, and I-70 2 weeks ago in my '02 ST. The truck did great, but didn't get the mpg I'd hoped. Wind was a factor. There was a 25-30 mph NNW wind hitting the left rear quarter for the 170 miles on I-80 through eastern Iowa, which was the hilliest portion of the trip. When we turned south on I-74 in Illinois, the wind was against the right rear quarter. By the time the terrain leveled off near Galesburg and we turned east, the wind died down a bit. We spent the night in Peoria and filled up there. The truck only managed 16.36 mpg on that section. Cruise was set at 75 for the trip where possible. Speedo reads a little fast.
The land between the Galesburg area and Columbus is pretty flat with the hills being long and gradual for the most part. The weather was great on Day 2 with virtually no wind. We made it from Peoria to about 30 miles west of Columbus before refueling. We got 19.63 mpg on that leg. We might have made 20 mpg if I had eased it back up to speed rather than hit the RESUME button on the cruise coming out of the numerous construction zones and after truck traffic cleared ahead of us after the steeper hills in Indiana.
When we left Columbus on Day 3, there was a stiff wind out of the south or SW. It wasn't too bad, but it created turbulence around trucks. I filled up before crossing into Illinois ($3.27/gal vs $3.67 just across the line). Spent the night in Danville, IL. 17.99 mpg on that tank.
Day 4 brought a breeze out of the SW. It seemed to ease somewhat as we got closer to home. Mpg on the last section was 17.77. Mileage for the trip averaged 17.9 mpg, not the 19+ I was hoping for, but the wind didn't help at all.
I only saw 2 to 4 other Sport Tracs on the entire trip. I often see more on a short trip across Des Moines.