Not a Focus in this case, but the 2 litre Zetec engine fitted to a 2000
Mondeo.

I recently inherited this car, and cannot remove the oil filler cap. It
will turn (and click) in the 'closed' direction, but will not budge when
attempting to undo. I've tried lifting, pushing down and it won't shift.

I picked up a new filler cap recently to replace this one, but I need to
get this one off first! I don't really want to take the rocker box off, and
I'm not happy with snapping this one off and picking the bits out of the
filler hole (although I understand that this is quite safe).

Any handy hints out there?

Cheers,

Al.