Lee Iacocca
Grumpy Old Fart
So did trump do away with the requirement of def in diesels?
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No More DEF?
- Thread starter Lee Iacocca
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56ram2500
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Great White North Eh
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Ya he said he fixed the tractors too……ha ha 
The part that people are missing:
- The 2027 regulations that were in place would have required a step function "increase" in diesel emissions control
- Making what we have so far - far worse for 2027
- Would have made it even harder to run the trucks if there was a sensor of software error.
- Just small errors would have shut down diesel vehicles and tractors - even less time to repair.
What was done and is in progress:
- Stopping 2027 emission controls from going into place
- Allowing the vehicles ( and tractors ) to run for - much longer with emissions control signal errors.
So farmers will still be able to plant and harvest their crops without an error light stopping the tractor and needing to call John Deere "instantly" during critical times. ( Deere does not allow people to work on their own tractors - only JD techs can work on a JD tractor by contract ).
People that use trucks to make a living ( and those that don't ) won't be down for months due to a part shortage.
RAM and the rest will be able to make a new software revision that allows a much greater tolerance to emission system errors than today for new trucks and for old ones.
I don't know "how much of an increased tolerance this will be, but the general nature of it will be to reduce the repair cost and down time.
So my understanding is that - it does not eliminate the official requirement to have the existing DEF system. It will allow the truck or tractor to run for much longer if you run out or if there is an error code.
DEF is just one part of the system - mostly aimed at reducing NOx. Even if the changes did eliminate DEF, it would not by itself fix the particle control system challenges for the 19-24s.
I am not sure, but I "think" that it has some impact on gasoline vehicles as well, especially for 2027.
It blocks California and some other states from implementing more strict emissions than the Federal standards, including an "EV mandate" vs " buy what vehicle makes sense to you personally."
_____________
It is unclear ( to me ) but it might also block California from forcing me to switch from a natural gas hot water heater to an electric hot water heater at home. TBD.
_________
This is not a "Trump is perfect" post - just my interpretation of the changes.
- The 2027 regulations that were in place would have required a step function "increase" in diesel emissions control
- Making what we have so far - far worse for 2027
- Would have made it even harder to run the trucks if there was a sensor of software error.
- Just small errors would have shut down diesel vehicles and tractors - even less time to repair.
What was done and is in progress:
- Stopping 2027 emission controls from going into place
- Allowing the vehicles ( and tractors ) to run for - much longer with emissions control signal errors.
So farmers will still be able to plant and harvest their crops without an error light stopping the tractor and needing to call John Deere "instantly" during critical times. ( Deere does not allow people to work on their own tractors - only JD techs can work on a JD tractor by contract ).
People that use trucks to make a living ( and those that don't ) won't be down for months due to a part shortage.
RAM and the rest will be able to make a new software revision that allows a much greater tolerance to emission system errors than today for new trucks and for old ones.
I don't know "how much of an increased tolerance this will be, but the general nature of it will be to reduce the repair cost and down time.
So my understanding is that - it does not eliminate the official requirement to have the existing DEF system. It will allow the truck or tractor to run for much longer if you run out or if there is an error code.
DEF is just one part of the system - mostly aimed at reducing NOx. Even if the changes did eliminate DEF, it would not by itself fix the particle control system challenges for the 19-24s.
I am not sure, but I "think" that it has some impact on gasoline vehicles as well, especially for 2027.
It blocks California and some other states from implementing more strict emissions than the Federal standards, including an "EV mandate" vs " buy what vehicle makes sense to you personally."
_____________
It is unclear ( to me ) but it might also block California from forcing me to switch from a natural gas hot water heater to an electric hot water heater at home. TBD.
_________
This is not a "Trump is perfect" post - just my interpretation of the changes.
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