Does nitrogen used in tires in place of air really save gas?
I have heard nitrogen tire fills advertised as a means of saving gas. Is this a gimmick, or does using nitrogen instead of air in your tires increase MPG?
Filling tyres with nitrogen certainly doesn't save nitrogen gas, but it saves compressed air.
this reminds me of the fuel line magnets from 20 odd years ago. These were clipped over fuel lines to align molecules and give better gas mileage. You would probably need a micron microscope to see any advantage.
Normal compressed air contains moisture and while this is undesirable in aviation and Formula 1 Race Cars it causes no noticeable difference in ordinary road going cars.
As to any measurable increase in MPG, I'd say "pie in the sky",
Nitrogen keeps your tires at a more consistent pressure than air (the air pressure in your tires increases or decreases ~1psi for every 10* change in air temperature). The difference is minute, but it's there. If a shop offers to fill up a new set of tires with nitrogen at no charge, take it. Otherwise I personally wouldn't pay to fill up with nitrogen.
by Susan Zutautas6 years ago
By using nitrogen in tires how much longer do tires tend to last?
by arizonataylor5 years ago
Do nitrogen-filled tires improve gas mileage?A local tire shop is filling tires with nitrogen for seven dollars a tire. Will I ever save enough gas to make this worth my while, or is this just a gimmick?
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