In a message dated 2/6/04 12:09:29 AM, Doug writes: << I'm interested in potential applicability of FLOSCAN products to my aging Perkins 4-108. Anyone have any insight? >> The Perkins 4-108 uses so little fuel at normal cruising speeds that the margin of error of the Flow Scan will make measurement extremely inaccurate. In my Willard, the Perkins 4-108 uses only .82 gallons per hour at 6 knots. By pushing the throttle to the wall, I can increase fuel consumption to 1.2 gallons per hour. The operating manual for the boat suggests that the best way to calculate fuel consumption is to use a clock and estimate one gallon per hour when under power. Larry Z