Bonneville America Forums Forums Technical Forums General Tech Kansas Gas - WTF

I've been making my way east thru a half dozen states and I usually note all my gas purchases and mileage for something to do. I was running a steady 44 mpg thru ca, az, nm, and texas. I usually start to look for gas at 125 but I only hit reserve at 150. Suddenly, my first tank of gas from KS ran to reserve in 110 miles delivering a stunning 33mpg! I thought I had to be wrong but the second tankload was almost identical. I'm working on a third tank the on to Iowa.

I think ethanol is pretty 0prevalent now so I dunno...

I live in KS and recently got 30 MPG one way (105 mile trip) and 40 MPG the 105 miles back.

I got around 34 MPG charging around KC.

I use Amoco or Shell.

I also think my bike needs tuned a little more to get better mileage. It's on the to-do list.

What brand fuels are you using? Where have you stopped to refuel? What roads are you taking?

Does Kansas use that 10 or 15% ethanol gas?

Most gas that I've seen is 10% ethanol; shouldn't effect you MPG that much. I routinely hit reserve at 190-205, getting 42-46 mpg. There has been no difference whether I fill up in KS or MO - though MO's gas taxes are 9 cents lower so it tends to be cheaper. I don't see any difference in mileage in the cars either.

...here in massachusetts, gas has "up to" 10% ethanol.....tank to tank in my honda crv I sometimes notice a great difference in gas mileage.....always attributed this to less alcohol.....

2008 - bigger tank, without the fuel pump.

195 miles on 4.5 gallons, 43 1/3 MPG.

Thanks J. I came north-east on 54, 50 and the interstates.

I checked again and i was running 40+ mph from oregon thru new mexico and dropped to just under 35 in kansas. If that'ts 10% ethanol wow! I'd rather they left it out and just sold me smaller gallons so i could fit more in my tank.

I think i saw this in ia years ago, i'll check my notes. I wonder if efi vehicles are less affected.

E10 is sold throughout the country, a lot of states require it. There is a good chance most of the gas you bought was E10.

Your mileage should drop with it, but it should be about a 2 mpg drop. This is the most balanced article I found on it.

I don't think EFI vehicles would be different, but I thought the temperature effect was interesting.

Is it possible you were just romping on the throttle harder because, well, you just wanted to get out of Kansas ?

The Kansas Flint Hills and mostly the wind.