[rface]

I tried it over the weekend.
I drive from Ashland, MO to Stockton, MO every weekend. This trip is 135 miles one way and is mostly highway miles, but I do some back-roads driving too after I get to my destination. Typically I will get 16.5 to 16.7 mpg on a tank of gas for this trip.

1996 Ford Explorer 5.0L V8 with 170,000 miles on it
I poured 6 oz. (180 ml) acetone into the filled 21 gallon gas tank
I made sure all the tires had 32 - 35 psi
I used Casey's General Store gasoline w/ 10% ethanol (I probably should have used the gas w/out eth. - but I'll try that next time).

Results: 369 miles using 18.46 gal = 19.99 mpg

Now I am trying this on my 1993 Dodge Spirit for this week

[rface]

.....in addition - if the speed limit was 70 MPH, then I would keep the speed between 65 and 70. I didn't speed, but I didn't "baby" it either.