If you are saying you are fully loading/working it to 37 HP, 3 QUARTS an hour would be 27.75 HP hr/gallon. AIN"T gonna happen.
It doesn"t look like the 4600 has been tested @ Nebraska, so just for fun let"s refer to Test 1854 of the 47 HP Deere 4520E... At 31.69 HP, it burns 2.31 GALLONS of fuel per hour, at 41.54 HP it burns 2.82 GALLONS per hour.
At 10.81 HP, the fuel economy was 8.03 HP hr/gallon. at 41.54 HP it was 14.75 HP hr/gallon. The number under load is right in the range of 14 to 17 that pete 23 posted below. (He"s got this figured out!)
If you are burning 3/4 of a gallon per hour it is producing about 11 HP!
(Using a reasonable fuel efficiency estimate of 15 HP hr/gallon X 3/4 gallon of fuel burned in an hour = 11.25 HP!)
(Don"t HATE me, I"m just telling it like the Nebraska Test Lab does!)
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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