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[–] rejectedfromreddit ago 

Yep. Proper tire pressure is one of the most cost effective ways to improve fuel economy. If I ruled the world, every gas station would be required to provide customers with free access to an air compressor

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[–] sn0wbawl 0 points 1 point (+1|-0) ago 

Many do. For the rest of us, $20 gets us there. The real trick is getting people to read the label in the door instead of filling the tire to max pressure