Reddit reviews NGK (7534) B6HS Standard Spark Plug, Pack of 1

Designed to operate over a much wider heat range than ordinary plugsResists carbon buildup and pre-ignitionHigh alumina ceramics for better heat transfer and electrical insulationSolid copper core and nickel tipped electrode provide a longer plus lifePatented triple gasket sealing process eliminates the possibility of combustion gas leakageSolid copper core for greater sparkLonger insulator nose prevents foulingCorrugated ribs on insulator prevents flashoverZinc dipped shell prevents corrosionTriple gasket seal eliminates combustion gas leakage