Could E-15 gasoline in Connecticut help your wallet at the pump? It really depends.

Could E-15 gasoline in Connecticut help your wallet at the pump? It really depends.

The Trump administration has issued a temporary emergency waiver allowing the sale of E-15 gasoline. It has more ethanol, which comes from crops like corn. E-15 gas has up to 15% ethanol, and the regular gas most of us fill up with is E-10, which is 10% ethanol. Typically, the less gasoline, the less expensive. But E-15 isn’t for every...