Be careful spraying anything down by the sockets... Once the plug comes out, any of that stuff can and will go into the engine. After loosening (go buy a 5/8" plug socket if that is what you need) and before removing all the way, spray some compressed air in there to blow out any debris before the plug is all the way out.

There are few things more frustrating than stuck plugs and wires. be sure to use di-electric grease on the new plug wires or if you re-use the old ones to prevent them getting so stuck again in the future.

Farewell - June 4, 2020