Though many things have changed in the car market, reports of random "miraculous" makeshifts that could supposedly improve fuel-efficiency don't seem likely to fade away so soon...
Quote:
Originally Posted by GoldCrazy2
I did once get my old style Pontiac Bonneville up to 13 MGP using a fish tank bubbler in a jug of water/alcohol mix.
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I don't understand how that would eventually improve mileage.