dpb wrote:
....

What would you get if you consider combustion air at intake of (say) 20F
or so? That density difference, while I didn't look it up, would be
moderately sizable I'd think.

....

Actually, don't have to look anything up to get close--it's only about
10% change in absolute temperature so that's about all the density
change is as well for ideal gas. So, not a big deal...

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