click the two embedded links above for the basis of the original comment. more info below:
short version is, estimates of the proposed drilling are 200,000 bbl/day by 2030. we use approximately 21million bbl/day today. this would make 200,000 slightly less than 1%.
improper tire inflation is estimated by the DOE to cost about 3% of efficiency and regular tune-ups another 4%. (and several other things roll up to be as much as 18% overall). we'll use the smaller 7% figure as an estimate since it's hard to say how much some of the other stuff is and isn't being done.
the DOT estimates that approximately 1/3rd of all vehicles are* under pressure while on the road. a slightly larger number will be improperly tuned (tuneups include tire pressurization, but many people will repressurize without retuning) but again, we'll low-ball our estimates and go with the 27%.
without getting heavily into the details of where and how and what percentage of a bbl is factored into gasoline, we use the gasoline from about 19.8m bbl of crude/day, so we'll see a fuel savings of approximately ~375,146bbl crude/day worth of gasoline if that 27% of vehicles were properly tuned and pressurized. today.
which is why I applauded your subtle shot at the absurdity of the RNCs responses.
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