My 2009 Kubota
L3940 has a Tier 4
interim engine in it. It is already here, and there are no problems. The Tier 4 final engines over 175hp are in new off road equipment now. Tier 4 final engines have been in over the road trucks (pick-up and big-rigs) since 2010. Fear not change, accept it. Philip.
yes the tier 4
interim engines run good but like i said have been around for a little bit and the bugs worked out. the tier 4
final engines will either have the particulate filters on them that collect the exhaust particles and dispose of them through high heat="regeneration" or using another fluid=urea, that mixes in the exhaust chamber and emits only water vapor out.
and yes this is only in the larger hp engines now and yes it has been it big rigs and trucks for a couple of years now,
BUT
where i work, the state transportation dept., we have a lot of mack and international dump trucks. the new ones (since 2010) have had the new tier 4 final standards on them. in particular the regeneration/particulate filter type. and like i say, THE BUGS, now when plowing snow on state highways, when the truck needs to regenerate, the operator has to pull over and park for about 30-40 minutes, in a snow storm, for the truck to regenerate. if the operator does not do this, the engine system becomes clogged and the truck loses power and eventually will shut down.
now "technology" is so great that the older trucks (with OUT the new tier 4 final standards/systems) can just keep on trucking and plowing.:confused2: that is a bug. the trucks are supposed to regen while driving, BUT that is at highway speeds, for a certain amount of time. can't do that when using for utility/service work such as plowing snow. that is why you have to do "parked regeneration"
and what do you think the truck is running on when it is at high idle for 30-40 minutes "regenerating"? diesel fuel. yes, now we are tring to be fuel efficient, but have to pull off the road and do an EXTRA process that costs more fuel!:confused2: ANOTHER BUG that needs worked out. just ask ford power stroke owners how they tell when their pick up truck is done regenerating. most will say, "when i notice the miles per gallon go back up".
now, the newer trucks that have tier 4 final emmission standards are getting better at this. they regenerate more on their own while being operated. but the first models had that bug to work out. same will hold true for the tractors. in fact some engine companies stopped making engines, due to not being able to meet tier 4 final standards.(CAT) those companies have other engines in their equipment.
and another thing, all this extra stuff on the equipment will mean more to go wrong. when was the last time you had a manuel 4wd lever on a 4x4 break? probably not as often as an "electronic" push button type. so now we are adding more electronics on tractors, so now more to go wrong. all these reasons are why i will buy now, before tier 4 final hits the smaller hp engines. i am not against cleaner air, just against the goverment implementing their plan wasting more of my hard earned money on new technology that is not refined YET! yes i believe this new tier 4 final will get the bugs worked out, but it will be a bit. then i might look at a tier 4 final tractor then.