Greece’s second largest refiner, MotorOil, reported yesterday that first-quarter pretax profit jumped 84 percent to 48.3 million euros. Motor Oil, with a market value of 749 million euros, said turnover rose to 497.4 million euros from 339.5 million a year earlier. Sales volume rose 13 percent to 1.824 million tons, the company said. “This increase is mainly noted in export sales, while domestic and bunkering sales remained at previous year’s levels,” Motor Oil said, adding that inventories remained at low levels.