The seat of the pants and the fuel gauge suffer some accuracy problems. Only way you will know for certain is to hook up to a dyno and measure fuel consumption. Hitch heights, tire size/construction/pressure, transmission, ground speed M4WD will all sway the numbers. Either the 4250 has problems/been tinkered with/abused. Or the math has become skewed. The 4430 is rated for 125.9HP at 15.6 gallons per hour. The 4250 is rated for 120.2HP at 15.7 gallons per hour. With M4WD the 4250 will drag the 4430 around like a toy.
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Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
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