On 6/28/2012 9:07 PM, Tom Hargrave wrote:
> 2.3 kg of carbon per liter burned

2.3 kg is  roughly 5.06 pounds
Something is missing or not stated right as it does not seem that there
are 5 lbs of carbon in one liter of fuel.
if gas weighs around 6 lbs per gal .
that means a liter of gas weights around 1.5 lbs.
pretty hard to get 5 lbs of carbon out of 1.5 lbs of gasoline I'd think.

what pollutes more ..?
a 7 liter engine with an idle emissions figure of 1.0 % CO,
or a 1 liter engine with that same emissions spec at idle ?

Europeans measure in grams of whatever pollutant, CO2 say, per distance
traveled, say grams per mile. .  Not as a percentage. That makes sense
to me.