what do you do to get the most mpg in your truck

Originally Posted by Mechanic688

Here you go, they help explain all the quackery;
K&J Magnetics - Fuel Magnets

Reading that, they don't sound too sure of it themselves, but of course if someone wants to buy something you can make there is no reason not to, haha. To my understanding though, the nature of hydrocarbons such as gasoline renders them essentially "non-polar," which is why they separate from water (which is polar, meaning that each molecule has basically a positive and negative end). To me it doesn't make any sense... Is there anyone that can direct me otherwise?