Change Spark Plugs

Parts: sparkplug socket, 10mm socket

GS4/430 come with Iridium Plugs (notes, I replaced all of my plugs with Torque Master Plugs)

Recommended to change plugs every 60000miles

Reinstall in the reverse order. DO NOT over tighten the plug, you CAN mess up the aluminum engine block or break the plug is you over tighten it.

(Torque 17.5 N-m (13ft-lbf) )

Location of the plugs (8 total on a V8 )

TorqueMaster plug (after 3 months use)

Good luck.

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