Tires pressure.

Island_370

Better economy is coming at a sacrifice. Potentially higher tire wear (not using the tire surface evenly) and potentially of braking performance--the easy two sacrifices.

I would rather get 2 fewer mpg then have to buy a front bumper because my braking distance is increased in an emergency situation. Do a search on the risks of "hypermiling", most have a section on higher tire pressures.

You can do what you want and likely you will never need to use the brakes at their max on the street. But to me, the risk ain't worth it.

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Autobahn Country Club (North and South Tracks), Blackhawk Farms, Grattan, Gingerman, Mid-Ohio, Putnam Park, Road America, Sears Point, Thunderhill, VIR and "The Ring"