There is some bad news for motorists this weekend as there will be another upward adjustment for kerosene and diesel. Come midnight, kerosene will increase by twenty cents from six dollars eight-seven cents to seven dollars seven cents per gallon. Diesel will increase eight cents from nine dollars ninety-six cents and ten dollars four cents per gallon. Premium gasoline stays at eleven dollars twenty-six cents and regular remains at ten dollars sixty-nine cents per gallon. Again, the price changes come into effect tomorrow.