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Modern Tractor Discussion Board

Topic: tractor fuel usage
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Fred2

01-11-2014 15:29:33
76.198.254.229
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Do you guys know of any sites where fuel usage per hour, for new tractor? I need to compare a couple of tractor to see which one is the best.

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Texasmark1

08-14-2014 06:30:34
172.242.11.159
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Re: tractor fuel usage in reply to Geir Hoskuldsson, 01-11-2014 15:29:33  
My Branson has it posted in the spec sheet along with bore, stroke and all. Mine is 0.046 gallons/hour/hp. So if I am working my tractor and using all it's HP for one hour it's 65x0.046 = 2.99 (gph) for my Cummins 4 cyl naturally aspired, 2007 model.

Also, HP is (torque x rpm)/5252. If you have the rpms you have the ponies. Torque is inherent in the engine and is a certain value at a certain rpm regardless of the load.

If you load the engine beyond it's capability it cannot sustain the rated rpms applying it's available torque and rpms will fall but torque will sometimes rise as rpms fall (depends on the slope of the torque curve) till you hit the peak of the curve.

Once you lug past the peak the engine will crater as the torque falls rapidly.....time to push in the clutch, let the engine recover and lighten the load.....drop down a gear or two. My engine peaks at 1600 and is relatively flat on out to 2600 rpm where it's rated at 65 hp.

Mark

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Ken Macfarlane

01-20-2014 08:48:18
142.166.168.2
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Re: tractor fuel usage in reply to Fred2, 01-11-2014 15:29:33  
There isn't all that much difference between similar models.

Deutz motors are known for good efficiency but its only about 15% better than the worst. Zetor have some high efficiency numbers but you have to drive a zetor.

Using an oversized tractor for a jobs wastes more fuel than the difference between models.

In the newest tier 4's the adblue/def models generally have about 10% better than the super egr tier4's.

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495man

01-20-2014 17:25:23
24.137.107.69
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Re: tractor fuel usage in reply to Ken Macfarlane, 01-20-2014 08:48:18  
Quoting Removed, click Modern View to see

Lol, same could be said about Belarus

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dcarp

01-13-2014 10:33:24
99.163.116.16
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Re: tractor fuel usage in reply to Fred2, 01-11-2014 15:29:33  
check out the University of Nebraska website they have tests of most tractors on there.

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Phil Tibbetts

01-11-2014 19:43:26
208.93.14.38
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Re: tractor fuel usage in reply to Fred2, 01-11-2014 15:29:33  
Don"t know of any site but there will be large variations on the same tractor according to engine RPM, work load, and other factors.

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