fuel consumption l4400 vs mx 4700 vs mx5100

   / fuel consumption l4400 vs mx 4700 vs mx5100 #21  
Well between the 4700 and 5100 if there is that great of a fuel change then the 4700 is a no branier. The hp gain of the 5100 is not enuff to explian the fuel usage. I do like the adjustable links on the 5100 but not enuff for that kind of fuel hit. I also am on the fence bout a turbo. I just dn;t think a mid size tracotr needs a turbo and the 4700 and 5100 are the same motor with the 5100 having a turbo i really feel it is just for emissions and thats why the hp gain is so small. I mean the turbo on the 5100 is tiny tiny. Only reason this q came up is that my dealer has a few 5100 on the lot and is willing to make a deal on them. I can get into the 5100 for 500 bucks more then the 4700. But i think im still leaning toward the 4700.

I don't think either way you go, a few months or years down the road, you are going to slap yourself on the forehead and yell, "Wow, I coulda bought a ----:eek::eek::eek::eek::eek:
 
   / fuel consumption l4400 vs mx 4700 vs mx5100 #22  
Redid the math figuring both tractor engines doing the exact same amount of work. (i.e pulling the same implement at the same speed)

@ 2000 rpm with engines loaded and producing 42.9 gross hp:

mx5100 @ 2000 rpm = 2.53 gallons per hour.
mx4700 @ 2000 rpms = 2.40 gallons per hour.


@ 2700 rpm with engines loaded and producing 48.9 gross hp:

mx5100 @ 2700 rpm = 3.18 gallons per hour.
mx4700 @ 2700 rpms = 2.94 gallons per hour.

@ $3.39 a gallon that would = $0.45 to $0.81 savings per hour at these working conditions.


I was looking hard at a new mx4700 myself (2wd) with loader for an even 18k last September. The shuttle shift location on these tractors is comfotable for me. I was thinking of replacing my JD5210 collar shift with one at that time.
 
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   / fuel consumption l4400 vs mx 4700 vs mx5100 #23  
I find that hard to believe. I have that same tractor and i get about 6hrs to a tank while using a flail in some pretty thick stuff. that would be less than 2 gal per hr as it has a 12 gal tank. . . and when i fill up even though the needle is on E i can only put 10 gal in the tank.

ditto.........a mx5100 is going to use that much more fuel than a mx4700? same tractor less turbo and 3 point links.................
 
   / fuel consumption l4400 vs mx 4700 vs mx5100 #24  
Redid the math figuring both tractor engines doing the exact same amount of work. (i.e pulling the same implement at the same speed)

@ 2000 rpm with engines loaded and producing 42.9 gross hp:

mx5100 @ 2000 rpm = 2.53 gallons per hour.
mx4700 @ 2000 rpms = 2.40 gallons per hour.


@ 2700 rpm with engines loaded and producing 48.9 gross hp:

mx5100 @ 2700 rpm = 3.18 gallons per hour.
mx4700 @ 2700 rpms = 2.94 gallons per hour.

@ $3.39 a gallon that would = $0.45 to $0.81 savings per hour at these working conditions.


I was looking hard at a new mx4700 myself (2wd) with loader for an even 18k last September. The shuttle shift location on these tractors is comfortable for me. I was thinking of replacing my JD5210 collar shift with one at that time.

Interesting comparison, I think we often don't take into consideration what kind of workload is on our tractors. Most of the time, ours may be running at the max rated RPM for the horsepower, but are running a cutter that is not taxing the engine.

Our renters ran an 8340 with a subsoiler again this year and you can really tell it is working the engine. I love the sound of a diesel under heavy load.
 
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   / fuel consumption l4400 vs mx 4700 vs mx5100 #25  
Well this just me but for a few bucks more I will always buy the one with more power. These tractors get such intermittent use that who really cares about the fuel consumption. Every time I had the opportunity to buy more power in the same package and didn't I wish I had whether it was 15hp or 500hp and yes I have them all. Buy the unit with the most power you can get in the package that suits your needs.:thumbsup:
 
   / fuel consumption l4400 vs mx 4700 vs mx5100 #26  
...............................Our renters ran an 8340 with a subsoiler again this year and you can really tell it is working the engine. I love the sound of a diesel under heavy load.

Diesels definitely sound the best when their really working. That 8340 looks like it shouldn't have sweat too bad pulling that load. As a non-farming tractor jockey, it's hard to imagine how many acres it takes to support the tractors & equipment farms are running these days.
 
   / fuel consumption l4400 vs mx 4700 vs mx5100 #27  
Diesels definitely sound the best when their really working. That 8340 looks like it shouldn't have sweat too bad pulling that load. As a non-farming tractor jockey, it's hard to imagine how many acres it takes to support the tractors & equipment farms are running these days.

They went to the bigger tractors a couple of years ago and got a subsoiler with coulters, so they don't sweat too much pulling, but you can tell they are under load as we have a real heavy clay content. Around here, the 8000 Series isn't even considered to be a "big" tractor anymore.

I don't see how they can afford these things either long term, but they do. I quit farming many years ago for a steady paycheck.
 

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