Randall,
The EPA website said:
Hydrocarbon emissions result from incomplete fuel combustion and from
fuel evaporation
This sounds like an oversimplifacation, but still I am wondering if one's
'HCE' goes down according to how efficient the combustion is? And is this
the same thing as saying 'how well tuned the engine is?'
Trying to reduce my 'carbon tireprint',
Paul Dorsey
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