Are piston rings covered under powertrain warranty?

Are piston rings covered under powertrain warranty?

ENGINE: Engine block and cylinder heads and all internally lubricated parts including pistons, piston rings, pins and cylinder sleeves; crankshaft, pulley, main bearings, caps and bolts; connecting rods, rod bearings, caps and bolts; camshaft(s), camshaft bearings, buttons and plugs; timing gears and timing chain or … Dec 23, 2011