55Mph

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 Even though the national limit was repealed in 1995, the old double nickel is a perennial topic and it reared its head again after the EPA announced ...

Spain's Minister of Industry and Energy, Miguel Sebastián, has introduced a set of measures to save energy, most of which affect cars and the way they're driven. These are expected to save 43 to 47 million barrels from being imported into Spain by 2011, not only for economic reasons but also ...

With fuel prices now hitting $4.50/gallon in California and even topping $5 in Hawaii, it may be time to ask the question, Can you drive 55? The original national speed limit came about in 1974 following the first Arab oil embargo and stayed in force for 19 years before it was finally repealed. ...

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 ...