Test Results

Posted by Nathan in Texas on September 07, 2005 at 08:24:32 from (216.167.183.158):

In Reply to: Re: 656: Gas vs. Diesel; TA vs. Hydro? vs. 706? v posted by Nebraska Cowman on September 06, 2005 at 09:24:08:

MrIH was nice enough to post the actual fuel consumption rates from the Nebraska Tractor Test results! Lets see if I can get them in a chart.

Model ------ 100% ------- 50% --
gallons of fuel used per hour

Gas Gear ----- 5.2 ------- 3.7
Gas Hydro --- 6.3 ------- 5.2
Dsl Gear ----- 4.2 ------- 2.6
Dsl Hydro --- 5.4 ------- 3.9

MrIH mentioned that the Hydros were set at 2,300 rpm vs. 1,800 rpm for the gear drive so that explains part of the extra consumption for the Hydro. Looks like the Gas uses about 1 gallon per hour more than the Diesel and everyone was right on the Gas Hydro, it eats the fuel like nobodys buisness but the Diesel Hydro is close behind and actually uses more than the Gas Gear drive!!

The difference between the gas and diesel seems to stay the same at the reduced power. Using the unrounded numbers the Gas uses 1.009 gph more at 100% and 1.129 gph more at 50% - The diesel gets a little more efficient at the lighter load but not alot more than the gas.

At $2.50 per gallon the gas gear drive version will cost about $275 more to run per year per every 100 hours of operation on fuel costs. At 50 hours which is really the most that I would be using it that would only be less than $150 a year difference in fuel. I think I am going to keep looking but stick with the gear drives and not be too picky about whether it is a gas or diesel if the gas has a lot less hours and is in better shaper.

Thanks! Nathan

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