I have not found a single page with estimates as low as dmitrygr’s 18.6 pounds per gallon. The numbers from the top hits ina web search for me: 19.64 - http:/

I have not found a single page with estimates as low as dmitrygr’s 18.6 pounds per gallon. The numbers from the top hits ina web search for me: 19.64 - http://www.patagoniaalliance.org/wp-content/uploads/2014/08/How-much-carbon-dioxide-is-produced-by-burning-gasoline-and-diesel-fuel-FAQ-U.S.-Energy-Information-Administration-EIA.pdf http://www.patagoniaalliance.org/wp-content/uploads/2014/08/... 20 - https://climatekids.nasa.gov/review/carbon/gasoline.html https://climatekids.nasa.gov/review/carbon/gasoline.html 20 - https://www.fueleconomy.gov/feg/contentincludes/co2_inc.htm https://www.fueleconomy.gov/feg/contentincludes/co2_inc.htm 19.6 (converted from grams) - https://www.epa.gov/energy/greenhouse-gases-equivalencies-calculator-calculations-and-references https://www.epa.gov/energy/greenhouse-gases-equivalencies-ca... “Just over 19” - https://epicenergyblog.com/2013/05/24/how-many-pounds-of-carbon-dioxide-co2-does-a-gallon-of-gasoline-produce/ https://epicenergyblog.com/2013/05/24/how-many-pounds-of-car... The next hit isn’t about CO2 from burning Gas, but about the upstream emissions that go into producing gasoline, which it pegs at 3.3 to 6.7 per gallon - https://www.sierraclub.org/sierra/ask-mr-green/hey-mr-green-how-much-co2-generated-producing-and-transporting-gallon-gas https://www.sierraclub.org/sierra/ask-mr-green/hey-mr-green-... What sort of estimates are you getting?