Fuel Comparison Diesel Vs. Gas

When we were choosing a boat for our cruise, we debated between getting a boat with gas or diesel engines. While there is a significant difference in purchase price between the two, some or all that difference may be made up when you consider the cost of fuel for the trip. Below are some comparisons of boaters doing all or part of the Great Loop Cruise.
Boater: A B C D E F G H
Year: 1994 1994-95 1993-94 1998-99 1996 1999 1998 1999
Size: 40’ 36’ 42’ 40’ 25’ 44’ 36’ 35’
Make: KhaShing Carver Hatteras Trojan Albin Carver Manatee Cruisers
Type: Diesel Gas Diesel Diesel Diesel Diesel Diesel Gas
Props: Twin Twin Twin Twin Single Twin Single Twin
Distance: 6288 6673 6240 4899 4566 1575 5000 1578
Gallons: 2,928 11,550 3,335 ------- 436 2740 823* 1607
Mi/Gal: 2.15 0.58 1.87 ------- 10.5 0.57 6.07* 0.98
$/gal: $1.30# $1.54 $1.30#* ------- $1.38 $0.85 $0.85* $1.51<BR>Cost: $3,812 $17,805 $4,335* $3,812 $600 $2,323 $700 $2421
Boater A: Cruised 900 hours. Average cruising speed at 2000 rpm = 7 mph using 3.25 gal/hr.
Boater B: Normal cruising speed = 17-20 mph
Boater C: Cruised 790 hours. Average cruising speed at 2000 rpm = 7.9 mph using 4.2 gal/hr.
Boater D: Cruising speed and consumption information not available.
Boater E: Average cruising speed = 6.5 -7 mph.
Boater F: Cruised 119 hours. Average cruising speed = 13.2 mph using 23 gal/hr.
Boater G: Cruising speed approximately 6 mph.
Boater H: Presently cruising from Chicago to Florida. Cruising information not available.
# Cruised in 1994-95 when $.22/gal Fed tax imposed on "red" diesel fuel for recreational boaters.
*Approximate


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