Comparison Tier IV Questions For Messicks

[MessickFarmEqu]

All the talk about fuel here misses one important point. These tractors are all using electronic fuel injection, not mechanical. Fuel is delivered for the needed load, its not linear fuel delivery any more. It takes very little fuel just to spin the cylinders, so the higher engine RPM in and of itself does not lead to significantly higher fuel usage.

As we went through all these Tiers, Tier 3 really had the engine detuned and choked to take care of NOX (PM was much higher at this point). Going to Tier 4 actually improved fuel usage as DPF and DEF systems are after treatment and they can tune the engines much more freely (DOC only is different, as it needs EGR).

 

[majorwager]

Messick Rep,

Confused here, Are you stating kubota Does NOT use EGR in conjunction w/ DPF? There is also Tier 3 confusion. A chart showed Tier 3 only appliable to +75 hp. My dealer called my MX 5100, a Tier 3 tractor?

Even w/ electronic fuel delivery providing greater efficiency, can't dispute the higher RPM's requires more fuel than lower engine speed, Did I misunderstand your post meaning?

 

[JerryK]

I'm popping a big batch of popcorn .........

 

[Turbys_1700]

I've been averaging a little under 3 gallons per hour pulling a 10 foot Bush Hog in thick head high Johnson Grass and lush fescue with my Tier 3 T4.75 New Holland. Run it in 4th gear 2nd range at 5.8 MPH. I wonder how much more efficient a Tier 4 unit would be over my Tier 3. So far I have no complaints.

 

[rngrrymd]

I've been averaging a little under 3 gallons per hour pulling a 10 foot Bush Hog in thick head high Johnson Grass and lush fescue with my Tier 3 T4.75 New Holland. Run it in 4th gear 2nd range at 5.8 MPH. I wonder how much more efficient a Tier 4 unit would be over my Tier 3. So far I have no complaints.

One of these days I'll let you know..... :mur:

 

[Mike Madison]

There are some new technologies on the horizon for diesel engines with much better fuel efficiency as well as much lower emissions. These are the two-stroke diesel opposing piston engines (3 cylinders, 6 pistons, 2 crankshafts, no head), such as the Achates engine. I heard a rumor that Ford was looking into replacing power-stroke diesel with these.

 

[majorwager]

Mike,
Detroit offered two stroke diesels in the 71 series years ago. I owned three. Lots of shifting, engines screamed, but output was strong through
Upper RPM limits. Fuel economy was very good.

 

[MessickFarmEqu]

Messick Rep,

Confused here, Are you stating kubota Does NOT use EGR in conjunction w/ DPF? There is also Tier 3 confusion. A chart showed Tier 3 only appliable to +75 hp. My dealer called my MX 5100, a Tier 3 tractor?

Even w/ electronic fuel delivery providing greater efficiency, can't dispute the higher RPM's requires more fuel than lower engine speed, Did I misunderstand your post meaning?

Correct, if you have a DPF you don't need EGR (can't say there is not an exception out there somewhere). Yes, an MX5100 is tier 3 (current MX5200 is tier 4)

Higher RPM would take more fuel.. I did not say that it would not. My point was though that its not as much as you would think given its not a linear mechanical fuel pump, and with the efficiency bump from some of the prior tiers any real impact should be questionable. Like many things, this is a bench test explanation.. your results may vary.

 

[jaydee325]

Correct me if l’m wrong, I believe the MX5100 was Tier 4 Interim. There were no sub 70hp that were Tier 3 unless the manufacturer used one of the confusing options allowed.

 

[daugen]

I admit I'm now really confused about my 2011 MF 2615. Unless TractorData is wrong they show my Simpson engine as being Tier 2, not 3.
How is that possible? I thought the switch over date was at least three years before that. No wonder it has a smell...but a fine tractor.
Sometimes Tractor Data shows the tier level, sometimes it doesn't.

Is there a federally mandated tag somewhere on the tractor that states exactly what tier level that engine is built to?
I still see some "last of the non DEF" marketing going on, I assume on leftovers. If I read Messick's right, perhaps the very last one before Tier 4 final might not be the best one.

I'm waiting for an electric tractor so we don't have all this nonsense to distract us, and maybe we'll get magnetic attraction
for implement hookup, how about some real high tech we can use?

I see those giant tractors with even larger exhaust stacks, I wonder how they can see around them.
Pretty soon we'll need live cameras because we can't see around the emissions equipment...
I also wonder if there are any you tube videos of the whole catalytic converter or combustion chamber or whatever it is going up in flames.
Plenty of annoyed videos about regeneration though.