An issue at this week's energy conference in Houston is how much oil could be saved if U.S. auto...

|By:, SA News Editor

An issue at this week's energy conference in Houston is how much oil could be saved if U.S. auto makers raised the average fuel efficiency from the current 23 mpg. GM's Dan Akerson says it should be a lot, as GM intends to cut the average weight of its vehicles by 15% and average fuel consumption 10% by 2017, and says GM could have 500K vehicles on the road using some form of electrification.