Thread: Thoughts about CO2, CATs, & gasoline fuel economy
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Old 01-31-2020, 06:58 PM   #3 (permalink)
California98Civic
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Join Date: Mar 2011
Location: Coastal Southern California
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Black and Green - '98 Honda Civic DX Coupe
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Quote:
Originally Posted by redpoint5 View Post
I don't follow the 2nd half. Any 60 MPG car regardless of cat will emit less CO2 than any 30 MPG car, regardless of cat. ...
But the comparison in the second question is between a car with a catalytic converter and one without a catalytic converter. So, if one of the cars doesn't have a catalytic converter at all, does it still emit any carbon dioxide and how much? Phrased differently, how much carbon dioxide is emitted by a car without a catalytic converter?
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
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