Compact Tractor Diesel Particulate Filters (DPF) Version 2.0

[Milo]

I've never investigate this subject too much, but after a quick search, yes, Tier V is a thing since 2019 in Europe. I had no idea though.

Here a bit more info on that: Emission Standards: Europe: Nonroad Engines....

So "Stage V" was implemented in EU for 2019 and all tractors sold in 2020 on. It now encompasses engines below 10kw. But while EU "stage 1-3" were the same as US "Tier 1-3," they separate after that. For now.

....Regulatory authorities in the EU, USA, and Japan have been under pressure from engine and equipment manufacturers to harmonize worldwide emission standards, in order to streamline engine development and emission type approval/certification for different markets. Stage I/II limits were in part harmonized with US regulations. Stage III/IV requirements were harmonized to a large degree with the US Tier 3/4 standards. However, at Stage V the harmonization has been largely lost—the Stage V PN limits require diesel particulate filters (DPF) on all affected engines, while the US Tier 4 standards can be met without filters......

 

[fried1765]

If this emmission stuff keeps going like this for diesel engines, I see a return to gas engines in tractors. Already seeing that in Pickup and even Medium duty trucks.

Makes me so glad all my diesel powered equipment is Tier 2 and before. Should last me the rest of my days. I would HATE running my tractors etc at pto rated rpm all the time.

^^^^AGREED !!!

 

[nova3930]

The DPF and SCR systems are the least intrusive to engine thermodynamic operation, so they will eventually be adopted by the holdouts still using a DOC.

The DOC basically relies on a 電etuned engine whether hot exhaust gasses.

It all depends on exactly what type of DOC, there are diffrent flavors. CO, non-soot unburned fuel, sulfur dioxide and other various organic compounds are still regulated emissions as far as I know, which are all what the DOC cleans up. The on road DOCs are now even tuned to convert NO into NO2, in order to support the SCR system operation.

As far as temp, DOC reaches 80% conversion efficiency around 700*F, while typical diesel EGTs are quite a bit above that. Tuned, my truck idles at 800*F+, so temp isn't really an issue.

 

[jeff9366]

I am looking for used compact tractor, it has to be a tier 3 or less, I live far from any dealer and hear friends cry about regen, regen, and floating back to the dealer for repairs, WHEN DID TIER 4 start with compacts? I need advice, and not picky, i'll take a JD or Kubota.

Tier IV emission standards require tractor manufacturers to add or revise pollution reduction technology on new tractors generating over 19 kW power = 25.4794 horsepower. Tier IV began phasing in during 2009, retail conversion was almost complete in 2013 when I bought my 'Tier IV' Kubota L3560. Old news in 2020.

Compact tractors used in residential applications such as lawn mowing, gardening and landscaping average sixty (60) engine hours of use per year.

That is ONE regeneration per YEAR.

The earth is not flat. The sky has not fallen. New tractor sales continue apace.


New tractors with less than 25.4794 horsepower are exempt from Tier IV requirements in the USA, but not in Europe where Tier V has been implemented.

A few light tractors, with small displacement engines yet 25-26 horsepower have been factory tuned to meet Tier IV requirements without a DPF. Low displacement tractor engines have to rev a little high to provide rated horsepower and meet Tier IV standards without a DPF.

GOOD VIDEO: Comparing Kubota's 26hp Compact Tractors - YouTube

 

[TCowner]

I for one appreciate the cleaner running diesel engines today. My Deere 4066R runs so much cleaner than the Deere 3720 it replaced. On cold start the exhaust emissions on the 3720 essentially required me to move the tractor quickly out of the shed. Not so on the 4066R. I've had no problems with the regeneration procedure on mine.

I also have a second generation Deere 2025R which is not a Tier IV compliant engine and it too runs much dirtier.

To each his own I guess but I don't think breathing unburned diesel fuel is a good thing.

 

[Rmart30]

I for one appreciate the cleaner running diesel engines today. My Deere 4066R runs so much cleaner than the Deere 3720 it replaced. On cold start the exhaust emissions on the 3720 essentially required me to move the tractor quickly out of the shed. Not so on the 4066R. I've had no problems with the regeneration procedure on mine.

I also have a second generation Deere 2025R which is not a Tier IV compliant engine and it too runs much dirtier.

To each his own I guess but I don't think breathing unburned diesel fuel is a good thing.

I dont think any of us here doesnt want to breathe clean air but. This was shoved down our throats when it needed 10 more years of R&D and testing done before it was implemented. Its cost millions of dollars to end users thru no fault of their own.

 

[Storm56]

I have a couple questions for all who think the tier 4 stuff is great. FIRST IF you had the opportunity to buy a tier 2 tractor, which still burns pretty clean with little smoke, or a tier 4 tractor with all the added complexity for the same price, which would you buy?

Secondly, NOW say the tier 2 tractor was $4,000 less because it does not have all the added complexity, which would you buy?

Me I would pay MORE for the tier 2 because I know it will not be headaches down the road. Plus I would HATE running my tractor at top rpm all the time.

I just know way too many people who own tier 4 crap that has hit them in the wallet hard! And quite a few mechanics who are not tier 4 emmission fans.

Our govt/epa completely screwed up what was once a great engine.

Don't currently own any tier 4 crap and likely never will.

 

[jeff9366]

The motto of the "Green" Party is: Think globally, act locally. I gather you are not "green".


I don't currently own any Tier 2 crap and likely never will.

 

[Storm56]

The motto of the "Green" Party is: Think globally, act locally. I gather you are not "green".

No, not a fan or member of the "Green Party". Not a fan of hypocrisy either, and there is way too much of that in the "leaders" of the green party.

I am a conservative and do believe in taking "reasonable" measures in preserving the environment and trying to leave it a better place than we found it.

I am sure we will undoubtedly disagree in how to achieve those objectives.

So I will leave it at, we will have agree to disagree.

 

[fried1765]

No, not a fan or member of the "Green Party". Not a fan of hypocrisy either, and there is way too much of that in the "leaders" of the green party.

I am a conservative and do believe in taking "reasonable" measures in preserving the environment and trying to leave it a better place than we found it.

I am sure we will undoubtedly disagree in how to achieve those objectives.

So I will leave it at, we will have agree to disagree.

OH NO!!!
This is terrible political chit.
Others here, will now be wetting their pants, and contacting the infamous "Catherine" for relief.