Idling: more pollution or not? Government study, modeling
Seeking feedback ! re govt. studies on pollution from idling enginerestart
Having huge debate w/ a friend re a bumper sticker:
No Idling: I turn my engine off when not needed.
He laughed derisively at it - - says a government study proves more particulate exits the exhaust at startup due to "sloshback" in the engine/ exhaust system.
so - due to re-start, no-idling philosophy = more pollution.
I'm highly skeptical.
a) Any federal govt study in last 8 years would have serious industry bias,
i.e., bought & paid for by Detroit.
b) A warmed-up engine's startup clearly produces less pollution,
more complete burn, less "bypass" of worn rings etc.
Does anyone know of Govt. studies on this?
Thanks to any & all for followups.
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