Wind deflectors
Does anyone know if those wind deflectors have any effect on gas mileage .. Will these deflectors give you better gas mileage and if so how much
Forum Discussion
Only a wind tunnel knows for sure, personal experience is extremely unreliable and essentially worthless. Without scientific/wind tunnel testing, we will never know.
People claim from personal experience that fuel line magnets and deer whistles work, but lab tests have proven that they don't.
People claim from personal experience that fuel line magnets and deer whistles work, but lab tests have proven that they don't.
