28 Nov '13, 5pm

Updated Gas-Mileage Aid: Valve Caps That Change Color With Tire Pressure

Updated Gas-Mileage Aid: Valve Caps That Change Color With Tire Pressure

By Stephen Edelstein 864 views Nov 8, 2013 Reddit This! Share on Facebook Share on Twitter Right PSI tire pressure indicator cap Enlarge Photo Sometimes, little things can make a big difference. Tire pressure can have a significant effect on fuel economy, but checking it generally requires unscrewing a valve cap and checking it with a pressure gauge (unless your new car has tire-pressure sensors and a dashboard display that shows the readings). Wouldn't it be handy to have a set of valve caps that change color with pressure? This concept has been around for some time, but now a company called RightPSI says it has a new and better design--and the founder is trying to crowd-source funds to develop it. RightPSI's pressure indicator is visible from 20 feet away, the company says: The cap starts out black, turns orange when pressure is low, and yellow when a tire is overfilled....

Full article: http://www.greencarreports.com/news/1088271_updated-gas-m...

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