Magnetic gas mileage extender
On a recent trip, a fellow RVer showed me a magnet that he says extends his mileage by 20%. I researched it, found many products, and many COMMERCIAL-STYLE claims, but, not convinced that it really wo...
Forum Discussion
Richard_999 wrote:
He was not selling them. He said he got his a Harbor Freight, but I could not find one there. I feel that while he seemed to truly believe it worked for him, It may not have been more than OTHER events, stacked together that made to fuel efficiency seem better.
Many of these devices instruct you to get a complete engine tune-up before installing the device for "maximum effectiveness". The tune-up alone may account for a noticeable mileage increase. Add that to the fact that drivers tend to be more mileage conscious after installing a device, and tend to drive in a more "mileage friendly" manner, and it's not hard to see where some of these claims come from. Various truck fleet operators have noted as much as a 30% difference in fuel mileage among drivers running the same trucks over the same routes, primarily due to differences in driving style.
