UPON REALIZING DECLINING FUEL ECONOMY AND AN ENGINE MISFIRE WARNING I REPLACED MY PLUGS NOTING THAT CYLINDER 2 PLUG REQUIRED ALMOST NO REMOVAL TORQUE AND WAS VERY FOULED (PICTURES AVAILABLE). LESS THAN A 4 MONTHS LATER, ENGINE LIGHT CAME ON, DIAGNOSED WITHIN MINUTES AS MISFIRE, BEFORE I COULD RETURN HOME, ENGINE EJECTED PLUG AND STARTED A FIRE IN THE ENGINE COMPARTMENT. I WAS ABLE TO EXTINGUISH THE FIRE WITH SNOW (AND 2 CANS OF DIET SODA) BEFORE THE CAR WAS CONSUMED BUT I SUFFERED BURNS ON THE HANDS FROM DRIPPING MELTED PLASTIC.