Stuart & Kathryn Fields wrote:

I agree with Tom on this. I don't safety wire the filter because I think it
might come loose, I safety wire it because I feel better. It doesn't cost
much in weight or time and it sure eliminates one possible, though not
probable, problem.

I use an auto filter, I take a 3-or 4" radiator hose clamp (worm-gear
type)and tighten it so that the back end of the screw butts up against a
part of the filter bracket such that the filter can't un/screw.---This
to be done just under the crimp -top- of the filter.

NOTE--NOTE--NOTE-- casually inspect top of the filter for an extra
rubber sealing ring---I Had it HAPPEN--the extra rubber blows out at the
first appearance of oil pressure---It leaked out 4 of the 5 qts of new
oil by the time I drove 9 blocks--luckily it was still leaking when I
stopped
and saw the trail.