Posted by Trent544 on November 18, 2007 at 17:50:55 from (166.82.246.61):
I was just reading below about V8's not having as good of fuel economy as the turbo 6 cylinders. I owned a 1468 for a short time and worked it in the field some. I was so surprised by how little fuel it used I went to my Nebraska Test book and found out this:
On the ten hour drawbar test (75% of drawbar horsepower) which I think is the best test to compare tractors in real field conditons the results are as follows:
test 1125 on the 1466=100.58 hp and 12.01 hp hrs/gallon test 1118 on the 1468=107.23 hp and 13.22 hp hrs/gallon
test 1174 on the 1566=110.79 hp and 11.69 hp hrs/gallon test 1175 on the 1568=108.44 hp and 12.59 hp hrs/gallon
Otherwise the six cylinders had better economy at 1000 rpm on the pto. They reached 1000 pto rpm's at about 2270 engine rpm. The six cylinders seemed to lose a LOT of economy going up to the rated 2600 rpm from pto speed of 2270.
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