Get your favorite politician. Democrat, Republican, or whatever; it doesn’t matter.
Connect mouth to valve.
Ask, “What’s your energy policy.” Hot air will inflate tire.
“What about the environment?” More inflation.
“Should wind be subsidized?” And so forth, until tire blows.
Flat tire! Now you aren’t going anywhere.
And — voila! — gas consumption now zero.
You’ve saved 100 percent of your gas.
… Only problem – you’ll need a new tire, which is mainly petroleum.