[hinckley buzzard]

The trouble is that few drivers bother with these suggestions, Mr. Hwang said. "People are basically too lazy to pump their tires up."

"Mr. Hwang" can kiss my grits. This is about as useful as recycling gum wrappers. Gibbering idiots.

[Paladin2]

Pumping up the tires can be a big deal as most recommended settings are based on giving a good ride and not being able to generate enough cornering force to roll the vehicle over. If your tires are below the recommended settings, they are a long way from being optimal for fuel economy. It may only be a few percent effect, but it is available for FREE. Be careful though. (;-0>