Anti seize:
Back in the day, when I was in the Navy, I was instructed to apply anti-seize to the plugs of the air cooled round motors when I changed them.
For the 15 years I owned air cooled VWs, I always use anti seize and never pulled a plug thread.
I use anti seize on all my plugs in air cooled engines. I know when I pull a plug, the threads will stay in the head,
Now I own water cooled VW Beatle and my son does the service, I don't know If he uses anti seize.
If he pulls a tread, It's HIS problem, I just hold the light.
What a difference from the old fresh air 40 hp to my 1.8 lt, 20 valve turbo, 200 hp New Beatle. I like the new Beatle much better, The heater and defrost even work.
Sorry to get side tracked, It seems to happen more often lately.
This could turn into another OIL type thread.
FREDM 06478