NHTSA Complaint #11620063 — 2017 HYUNDAI TUCSON

Was driving down highway and vehicle lost power and shut off. Brought car to mechanic shop they ran a diagnostic and tore down the engine to see what the problem was. They found the problem was with oil consumption and carbon buildup. Oil was leaking through the pistons,piston rings into the combustion chamber, which in part was causing oil to go through the exhaust system. They found oil in the exhaust pipes and the catalytic converter and the exhaust manifold. The catalytic converter had to be replaced because it was clogged with all the oil that was leaking through the exhaust system from the combustion chamber. They found carbon buildup on the pistons, the piston rings and inside the combustion chamber