ignitionSpark Plugs Torque Specsfor 2018 Buick Envision 2.5L I4 · AWDUnitslb-ftNm6 fastenersSeqComponentTorqueAngle—Coil Pack Bolts8 lb-ft · 11 Nm——Cover Screws8 lb-ft · 11 Nm——Engine Cover Clips2 lb-ft · 3 Nm——Ignition Coil Bolt8 lb-ft · 11 Nm——Mounting Bolts20 lb-ft · 27 Nm——Spark PlugCriticalGap before install, anti-seize optional15 lb-ft · 20 Nm—📝 Suggest a correction to this torque spec