Ok fellows here are the results.

After fueling on Saturday night....see Previous post Testing Begins.
Total trip length between refueling: 160 miles
Number of starts and stops: 6 , 4 of which were warm restarts, 2 cold
restarts.
Driving conditions: 40% city or town
20% Freeway 70 MPH+
40% Rural Two lanes
Weather: Chilly temps in the 40's mixed rain and dry. Some heavy rain
that slowed up traffic to a great degree.
Max. that I have achieved with this vehicle 18MPG. Normally between
15.5 and 17 MPG in mixed driving.

Ok boys hold on to your seats........160 miles of driving. Topped off
tonight and I mean as much as would go in the tank. 7.5 gallons of
regular gas used.

Milage on this trip.21.33333
If I take the base at 17MPG as a median value and that's about right
for this vehicle, this works out to an increase of fuel efficency in
this vehicle on this run at something just around 25.5% or 4.3333 MPG
increase.

Cost savings: Regular gasoline at $2.09 a gallon.
4 ounces of Acetone @ $5.44 quart. 68 cents. per full
fill with gasoline

With no acetone 9.4 gallons at $2.09 a gallon for 160
mile trip @ 17 MPG. $19.65

With Acetone 7.5 gallons at $2.09=$15.67 + .68 =
$16.35 total for 160 mile trip of mixed road conditions. Real world
driving conditions.

Total savings.........$3.30 for this trip. That would be $20.75
Approx. of savings per thousand miles of this type of mixed city and
highway
driving in this vehicle.

Averaged out using Acetone gave me the value of 9.4 gallons of
gasoline at $1.74 a gallon in distance drived had I not used acetone
and gas was $1.74 a gallon.

Conclusion. I am certain at this point that Acetone does make a
difference in milage in this vehicle. While the cost saving is not
huge it is significant. Especially when viewed from the stand point
if fuel prices continue to rise the 25.5 % on savings in dollars back
would also rise with the price of fuel. Second I do think that
because of more complete burning of the fuel mixture, emmisions would
be lowered and wear on internal engine components from unburned fuel
entering the oil and other areas would also make repairs less
frequent and less costly.Also air polution should be lowered as a
result of more complete combustion of fuels and less gallons being
burned. I also believe that at interstate driving speeds in which
there would be constant use of cruise control and no stopping as was
done in this test additional increases in milage can be gained. I
will be taking a 400 mile business trip soon which will be mostly
Expressway driving and I plan on continued testing with this vehicle
to just see what other gains can be obtained. In the mean time the
demonstrated savings is worth the small investment of time at the pump
and I am planning to continue to use acetone in this vehicle (test
vehicle 1) and tonight we fueled my wifes Bonneville with acetone and
gasoline for her tests this week on her trips to and from work.(Test
Vehicle 2) I expect better results with her Bonneville as it is a
higher fuel efficent car and her driving is nearly all freeway
driving. I'll get back to you when I have something on her tests and
after my highway tests of the Ranger. Stay tuned.

Mark