How low will it go?

Gas prices are down again (average L.A. price about $3.11) -- part of a multi-week decline that has experts scratching their heads. But LA Biz Observed's Mark Lacter doesn't think the trend will hold up:
Whatever the explanation, you might want to fill up pretty soon - prices are likely to start climbing in the next few weeks as refiners begin switching over to summer fuel blends, a process that can be disruptive to refinery operations. And you know what that means.

