Gasoline prices were decreased by 0.14 Turkish liras (approximately $0.05) for one liter on Tuesday, as a result of slowdown on gas prices and decrease in the U.S. dollar against Turkish lira.After the 14 kuruş discount, gas prices dropped from 4.90 liras to 4.76 liras in Istanbul and from 4.92 to 4.78 liras in the capital Ankara. New regulation will be in effect starting on Wednesday.