Forum Discussion
wilber1
Sep 09, 2017Explorer
ShinerBock wrote:wilber1 wrote:ShinerBock wrote:wilber1 wrote:goducks10 wrote:
It would be interesting to have a long term side by side test of a deleted truck vs a stock truck. Measure emissions and mpg to see if the deleted truck getting more mpg actually produces less emissions over say 100,000 miles. Lots of speculation on both sides.
The only thing the deleted truck will emit less of is CO2 because it is burning less fuel. Emissions of the nasty carcinogens like particulates and NOx will be way up.
True, but you would also have to calculate the pollution from the factory making the DEF and the factory making the jug or totes it comes in. Then you would have to factor in emissions of the delivery system of the DEF and the waste of the plastic bottles. All of that just to get an extra 1.8 gm-hp/hr lower versus the 2004 emissions that didn't require that stuff.
Peanuts compared to what comes out of a deleted truck's tailpipe in couple of hundred thousand miles. Over 90% of the world's urea production is for fertilizer and how many DEF tanks is your truck going to go through in a lifetime. You can use bulk DEF at the pump in a lot of places and the plastic jugs can be recycled.
2016 emission limits are small fraction of 2004 limits.
And what are the numbers?
US regs are a dogs breakfast to figure out. Europe is much simpler.
Euro 4 regs which came out in 2005 had NOx at .25 grams per km and Particulates at .025 grams per km.
Euro 6 which came out in 2015 had NOx at .08 grams per km and Particulates at .005 grams per km
That is a 300% decrease in NOx and a 500% decrease in particulates over ten years.
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