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 - Measuring with Calipers - by Staff. The legs of inside calipers are curved outward at the extremities to facilitate measuring small holes, while outside caliper legs have a large curve inward to increase their capacity for large work. Firm-joint calipers are adjusted approximately by the hands and then set to the feel of the work by tapping them on a metal surface. It is a common practice when opening calipers by this means to tap the top of the joint. It is better, if possible, to tap the inside of the legs, as repeated blo
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