The trip was a total of 441.4 miles.  The van was filled before I left and
also filled when I got back at the same station.  It was also filled at the
Big Meadows campground before the trip back.   Total gas used was 20.0
gallons, for a combined average of 22.1 mpg.  The odometer reading is very
close because I followed my brother down and we checked his mileage versus
mine.  (We were within 5 miles on the trip down.)  He was driving a new
Toyota 4Runner, so I would guess his mileage is pretty accurate.  The 23.6
mpg on the way back was surprising, because this included a 10 minute
traffic back up where I did not shut off the motor.  The 23.6 was almost 2
mpg better than last year's run.  Besides the timing and tune-up parts, I
am running the Kirkland tires.  The 50 psig tire pressures could only help.
I was running Michelin P-tires before, which maxxed out at 35 psig.

                                                   Jay