Quote:
Originally Posted by cmac2012
....(except I doubt they're quibbling over a 1/100% reduction)..... I've heard a lot about particulate matter from diesels, I mean maybe I'm wrong, it has happened before, but I'd have to see more info before I conclude they're just wasting our time.
|
Here's a table that shows the historical reductions in automotive NOx emissions from 1975 to 2009.
http://www.ehso.com/ehshome/auto-emissions_chronol.htm
We are now at 7/100ths of a gram of NOx per mile, the last reduction went from 30/100ths to 7/100ths. That's a 77% decrease from the previous standard that was itself an over 90% reduction from the original 1975 standard.
How much cleaner do you want to get it?
I'm sure there are plans at the EPA to reduce it another 77% to 1/100th of a gram per mile - and of course you will need 3 new exhaust catalysts, a 50 gallon tank of urea, 2 particulate traps that will have to be changed every 3rd tank of fuel and these changes will only add another $1,000 to the sticker price of the car.