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Small trucks

Dec. 30, 2013, 10:23 a.m.
Posts: 341
Joined: Jan. 24, 2008

I was reading my buddy's owners manual on a newer ram diesel, from the last few years. It says it burns more fuel in order to keep emissions lower. It actually says that in the manual.

That's why the newest Rams and pretty much every other manufacturer have gone to the urea injection systems. The whole lets burn more fuel to reduce emissions never really made much sense.

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Dec. 30, 2013, 10:34 a.m.
Posts: 4983
Joined: Dec. 6, 2002

Imagine, if you will. A world where everyone's concerns, priorities, needs, wants and financial state are not the same as yours…

Uuhhhg. Really Dave? Maybe head on over to Europe bro.

You post wreaks of NA entitlement.

Isn't this a thread themed towards our desire for NA manufacturers to bring us efficient mid size diesels?

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Dec. 30, 2013, 10:44 a.m.
Posts: 18446
Joined: May 29, 2004

That's why the newest Rams and pretty much every other manufacturer have gone to the urea injection systems. The whole lets burn more fuel to reduce emissions never really made much sense.

Lulz for someone who doesn't understand SCR exhaust systems

Dec. 30, 2013, 2:57 p.m.
Posts: 341
Joined: Jan. 24, 2008

Lulz for someone who doesn't understand SCR exhaust systems

Explain the SCR system please

http://www.wildrootsphotography.ca/

Dec. 30, 2013, 3:36 p.m.
Posts: 34343
Joined: Nov. 19, 2002

They plug up.

It is easy to dodge our responsibilities, but we cannot dodge the consequences of dodging our responsibilities.
- Josiah Stamp

Every time I see an adult on a bicycle, I no longer despair for the future of the human race.
- H.G. Wells

Dec. 30, 2013, 3:54 p.m.
Posts: 156
Joined: Oct. 23, 2003

Explain the SCR system please

urea just goes after the NOx gasses in the exhaust

the whole "burn more to emit less" is for particulates where they run a DPF filter that eventually gets full and needs a regen, they use diesel to burn off the particulates that the filter catches during a regen cycle, that's where the whole "it burns more fuel to make less emissions" comes from

its pretty much job security for mechanics.

Ha Ha! Made you look.

Dec. 30, 2013, 4:06 p.m.
Posts: 0
Joined: June 12, 2004

Dec. 30, 2013, 4:17 p.m.
Posts: 18446
Joined: May 29, 2004

urea just goes after the NOx gasses in the exhaust

the whole "burn more to emit less" is for particulates where they run a DPF filter that eventually gets full and needs a regen, they use diesel to burn off the particulates that the filter catches during a regen cycle, that's where the whole "it burns more fuel to make less emissions" comes from

its pretty much job security for mechanics.

And the fuel that is oxidized during a regen doesn't amount to much and is only injected during a service or autoregen. Passive regens use exhaust heat only to activate the catalyst.

The big question is,when it comes to after treatment,what would you prefer,20 bucks a gallon for DEF or 5 bucks a gallon for diesel(and no extra tank or pump)?

Dec. 30, 2013, 4:37 p.m.
Posts: 34343
Joined: Nov. 19, 2002

US DOE estimates savings of one and a half million barrels of oil a day if a third of all their automobiles were running diesel.

It is easy to dodge our responsibilities, but we cannot dodge the consequences of dodging our responsibilities.
- Josiah Stamp

Every time I see an adult on a bicycle, I no longer despair for the future of the human race.
- H.G. Wells

Dec. 30, 2013, 4:39 p.m.
Posts: 341
Joined: Jan. 24, 2008

So essentially my comment that the OEM's are using extra fuel to clean up the emissions was bang on. Yes it is in small amounts but you are still burning extra hydrocarbons to pass the sniffer test.

IMHO the DPF system is very flawed. And the manufacturers are proving this by moving towards urea. Which has another whole set of issues, of course.

http://www.wildrootsphotography.ca/

Jan. 3, 2014, 1:10 a.m.
Posts: 3649
Joined: Aug. 22, 2005

http://vancouver.en.craigslist.ca/bnc/ctd/4256761983.html

New trucks suck.

Jan. 3, 2014, 1:48 a.m.
Posts: 34343
Joined: Nov. 19, 2002

1974 360 - good for about 8mpg.

It is easy to dodge our responsibilities, but we cannot dodge the consequences of dodging our responsibilities.
- Josiah Stamp

Every time I see an adult on a bicycle, I no longer despair for the future of the human race.
- H.G. Wells

Jan. 3, 2014, 2:15 a.m.
Posts: 7967
Joined: March 8, 2006

Yeah, this thread is full of babies. Who gives a crap about UREA, it'll be gone soon.

Jan. 3, 2014, 4:33 a.m.
Posts: 18446
Joined: May 29, 2004

yep, butthen we'll have to burn more deezil!!!

btw, it isnt actually burned in the doc/dpf,rather it's oxidized

Jan. 3, 2014, 4:35 a.m.
Posts: 18446
Joined: May 29, 2004

1974 360 - good for about 8mpg.

8 mpg of fucking awesome!!!!!

that truck needs a 7.3 transplant

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