lumberjack
Young man on the go
Naval Jelly is rust remover, gelled phosphoric acid... wouldn't be well suited for protecting battery terminals, I think.
Why do you love 660s?
Just curious.
They were the last generation of weak, killed by emission laws, felling saws, that Stihl put out, before going computerized.
Personally, I find the 661 to be the best thing since the legendary 064.