Since you say it was tested on a DDT, I'm assuming it's an EFI. If so it is one THIRSTY SOB, believe me I have one. They have torque that is out of this world though for a small V-6, but that 12-13 gallons per hour at cruise is a killer. Also a 25" shaft 2.5L EFI weighs in around 425 pounds. If I was considering a 2.5L, I would go with a 200HP for the reduced cruising RPM's. This will give you an idea of the fuel burn for a 2.5L 150, the older engines are close but slightly higher(about 5-8% more fuel burn).
http://www.mercurymarine.com/look_de...p5090150efi=20
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR
2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD
AND THE PINK JEEP!!!! R.I.P.
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