RobJ
Elite Member
That's not completely true.. or at least.. the difference is almost nill.
I can mow my 10ac with my 70 hp tractor or my 95 hp tractor using a 10' mower. both take about 3 hours... (same trans).. both use about 5g of fuel.
I can also swap that 95 hp tractor to a 15' mower, and cut that 10ac, and drop time to about 2 hours... guess what.. still uses that same 5g of fuel.
That tells me that it takes about 5g of fuel to mow that 10ac. By your example, the 95 hp tractor would be wasting lots of fuel. in reality.. it's only making the hp it needs to run the load. There may be a small loss due to extra weight of the 95 hp tractor vs the 70.. but not much..
any more.. on a decent running diesel.. fuel usage will be based on time at load. equal loads on 2 diesels should run about the same fuel usage, give or take a lil.. even if one is a lil bigger or smaller.. so long as the load is within the range of both machines..
soundguy
You've told this story many times and in your case it may be true but in general it's hard to make a blanket statement.
By your example of "work done" and "time", if you put a 5' mower on your 95hp tractor it will take around 5 hours and still only use 5 gallons of fuel(amont of work and time). Same with a 70hp tractor. But I can put that 5' mower in my 26hp tractor and still burn 5 gallons of fuel. Or I could put that 15' batwing on a 150hp tractor and it would still only burn 5 gallons. To take it further my idling 26hp tractor will use the same fuel as a 50hp or 70hp tractor. No work is being done so they are the same.
Just a lot of variables to consider on this.
Rob