Permatex, 3.35 OZ Tube Ultra Blue RTV Silicone Gasket Maker, No Leak, More Flexible Under Typical Engine Conditions Upon Exposure To Oil, Resistant To Oil And Won't Break Down Under High Heat, Low Volatile, Won't Foul Engine Computer Sensors, Won't Harm Aluminum, Iron, Plastic Or Steel, No Vinegar Odor, Carded.Permatex