My 2014 Chevrolet Sonic LT, at the closed NADC Warminister, Pennsylvania. The aircraft antenna testing buildings are now used by Penn State Univ. There have been no problems with the Sonic in the 1st year. After a few hundred miles the automatic transmission, electric power steering are very smooth. I change the engine oil/filter myself, 10mm socket for the oil drain plug and a 24mm 6pt socket w/short 5" handle ratchet for the filter. The oil filter has been clean, a few pieces of gasket material on it. I use Mobil-1 Gold Cap, 5W-30 4 qts, 5W-20 1 qt.