The vehicle's handling is compromised when the tires are over-inflated. So why didn't the harder tires with less drag result in better mileage? Well, you've got to figure that, at 70 mph or so, the aerodynamic drag of the car's body is probably outweighing the small improvements the tires gave us.Īnd we wouldn't recommend anyone try this one at home either. To invoke the MythBusters, we'd now consider the myth of increased fuel economy from over-inflated tires officially busted. At the Chevron station in Santa Monica, our Fit drank 9.76 gallons, translating into 42.14 mpg-nearly the exact same mileage. This time, over the exact same route, at the same speeds, the Fit went 411.3 miles. If this Hyundai warning light does not disappear while.
Two days later, we dropped the pressure back down to the recommended 32 psi and pointed the Fit's nose home toward L.A. When the TPMS light appears, it can mean that one or more tires are overinflated or underinflated. That's the best mileage we've recorded so far in this car. Before reaching Phoenix's West Valley, we were able to travel 394.1 miles, then filled up in Glendale with 9.34 gallons and recorded 42.19 mpg. We figured 5 psi under that maximum inflation pressure would reduce drag enough to boost our mileage by some measurable amount. So for the trip to Arizona, we inflated the tires to 45 psi. The sidewall says the maximum pressure for the tires is 50 psi. The door placard on the Honda recommends 32 psi in all four tires. So, after saying goodbye to half our test car fleet, we took our long-term Honda Fit on an 800-mile road trip from Los Angeles to Phoenix and back again-setting our cruise control to 70 mph except for dips down to 65 mph in central Phoenix and downtown L.A. Anti Lock Brake System ( ABS) Warning Light The ABS light will come on briefly when the ignition is turned on. To diagnose these warning lights, use a Cadillac OBD-II Scanner. If under-inflated tires drop your fuel economy, then over-inflated tires must give that mileage a boost-right? Posted on Updated on In this article, you will learn about Cadillac dashboard warning lights and what these symbols mean. Play icon The triangle icon that indicates to play
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