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Old 05-18-2011, 04:54 PM
heather lawn sp heather lawn sp is offline
LawnSite Senior Member
Join Date: Apr 2005
Location: Kitchener On
Posts: 681
Originally Posted by heather lawn sp View Post
We have a large variance in fuel consumption. We can increase consumption 10 and 40% if it is a heavy growth week, such as this spring or if the trimming is falling back. In the middle of a dry summer consumption can fall. The deck loading can drink through more fuel than the mower speed. When trimming time is high in spring, the diesels get less time. In August trim time is minimal and productivity and diesel consumption surges ahead.
The numbers I used are season long, 3779.28 litres of marked diesel and 800 hours. We can mow 25 acres per day per unit, is that a lot?

The Kubota dealership voiced an opinion that gas to diesel of same horsepower might be 30% difference in consumption. Add to that $1.205 gas to $0.9765 diesel, cost per hour could be significant.

marked diesel 0.7 litre @.9765= $0.683 3779.28 litres and 800 hours 4.72 L/hr
gas 1.0 litre @1.205= $1.205 2621 litres and 621 hours 4.22 l/hr

There's your double factor
or close to it
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