Quote:
Originally Posted by Big Dave
As a result of Tier II, my old 7.3 whips the socks off of newer truck diesels.
I mean by a 6 MPG margin. That's roughly 25-33%. A big price to pay for the fact they are 0.01gm/mile cleaner in PM2.5 than my eight year old truck.
If CO2 matters to you (it doesn't to me) you are faced with a trade-off. A lot more CO2 and a tiny bit less PM2.5 or a tiny bit more PM2.5 and a lot less CO2.
Ain't engineering fun?
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I've sucked-down my fair share of non-turbo, E-350 Diesel Fumes (6.9L: '93-'96 Ambulance Conversion (regular job) + Firefighting vehicles on a more intermittent basis).
Getting behind a Clean-Diesel school bus really drives-home more than particulates and CO2. Another big difference is
sulfur and its negative effects. Back to particulates: in urban areas (plus truck-stops and intermodal areas with excessive idling), the lowered PM reduces the risk dramatically for childhood Asthma and breathing disorders in older adults.
We each have our priorities, and I respect that. Mine is more for Public Health.
RH77