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55 mph national limit to make a comeback? Not so fast.

When the original national speed limit came into effect in 1974 after the first Arab oil embargo, it was designed to cut back on gasoline usage. Even though the national limit was repealed in 1995, the old double nickel is a perennial topic and it reared its head again after the EPA announced yesterday that greenhouse gases are hurting us. Writing in the Examiner, Mark Tapscott says that, "[The 55 mph limit is] virtually assured of making a return engagement in the very near future, thanks to a new ruling by the U.S, Environmental ... Read more →

What happens when highway drivers are forced to go 55 mph (it's not pretty) Sebastian Blanco

55 mph national limit to make a comeback? Not so fast. 13 days ago on Autoblog Green

What happens when highway drivers are forced to go 55 mph (it's not pretty) 2 years ago on Autoblog Green

Everyone's probably familiar with the idea that engines in cars produced today are tuned to burn gasoline most efficiently when the car is moving at about 55 mph, right? I thought I'd heard that some newer cars were tuned for a slightly higher speed (60 or so), but I haven't been able to confirm ...

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Guide to Common Green Acronymns

CAFE – Corporate Average Fuel Economy. A system used in the U.S. to define mileage requirements of new vehicles.

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