I’ve seen these advertised as additives to the gas tank to improve mileage. Is there any truth to the claims?
No. None. Zero, Nil. Zilch.
Click the link below and it will take you to the last thread explain the quality of this product.
http://community.cartalk.com/posts/list/493011.page
~Michael
Buy a bottle. Put one on the edge of your dash. Drive softly such that it never falls off. You’ll save gas. Guaranteed.
They’ll do absolutely no good in your gas tank.
They absolutely do. In fact, if you send me twenty five bucks, I will send you my own personally-developed, tailored to your car, formula containing the combination of these off-the-shelf commercial additives that will actually allow you to produce fuel while you drive. (Individual results may vary.)