From my searching it appears you're incorrect. Combustion produces carbon dioxide. The carbon monoxide comes from incomplete combustion, which it seems there is always some of, but regardless, it appears most of the gas produced from combustion is carbon dioxide.
Carbon Monoxide
CO is a product of the incomplete combustion of carbon-containing compounds. Stationary combustion sources produce CO, which is oxidized to CO2 while dispersing in the air from the stationary source. Stationary sources of CO are significant only quite near the source.
Most of the CO in the ambient air comes from vehicle exhaust. Internal combustion engines do not burn fuel completely to CO2 and water; some unburned fuel will always be exhausted, with CO as a component. CO in vehicle exhaust can be reduced by using partially oxidized fuels like alcohol and by a variety of afterburner devices. It tends to accumulate in areas of concentrated vehicle traffic, in parking garages, and under building overhangs.
So it seems any CO which was released oxidizes in the atmosphere.
No, the leftists specifically mention carbon dioxide when talking about gasoline automobiles. While, yes, cars emit both carbon monoxide and carbon dioxide, they have never mentioned this in any of their campaigns against cars. I do agree though, carbon monoxide is dangerous and of course it's not good to pump too much of it into the air, but again, leftists never talk about reducing carbon monoxide, mainly because the levels that are emitted into the atmosphere are negligible.
I think you're confusing carbon dioxide (what we breath out) vs carbon monoxide (what cars exhaust). Way different
From my searching it appears you're incorrect. Combustion produces carbon dioxide. The carbon monoxide comes from incomplete combustion, which it seems there is always some of, but regardless, it appears most of the gas produced from combustion is carbon dioxide.
edit:
from https://www.sciencedirect.com/topics/engineering/carbon-monoxide:
So it seems any CO which was released oxidizes in the atmosphere.
from https://www.chemicool.com/elements/composition-of-air.html:
Looks like we shouldn't be worried about the concentrations of CO in the air.
And from https://en.wikipedia.org/wiki/Exhaust_gas:
If this chart is correct then carbon monoxide emission from a passenger car looks to be about 1/20th the carbon dioxide emission.
No, the leftists specifically mention carbon dioxide when talking about gasoline automobiles. While, yes, cars emit both carbon monoxide and carbon dioxide, they have never mentioned this in any of their campaigns against cars. I do agree though, carbon monoxide is dangerous and of course it's not good to pump too much of it into the air, but again, leftists never talk about reducing carbon monoxide, mainly because the levels that are emitted into the atmosphere are negligible.