FILE - In this April 6, 2015 file photo, a vehicle is refueled at a gas station in New Orleans. Rising gas prices in March led to a slight increase in inflation, a sign that some of the broader economic impact from cheaper oil is fading. The Labor Department says the consumer price index rose 0.2 percent in March. Inflation moved at that same pace in February, which ended three straight monthly declines caused largely by falling oil and gasoline prices. (AP Photo/Gerald Herbert)WASHINGTON (AP) — Rising gas prices in March led to a slight increase in inflation, a sign that some of the broader economic impact from cheaper oil is fading.