Quote Originally Posted by Geoff555 View Post
Hi as far as I am aware stop leak works by swelling seals, prissily how long this would work or what the effects would be I don't know.
Rather replace the seals and have the maximum reliability and life.
As regards pellgun oil I have used a straight 30 oil for years and all seems fine.
Cheers.
Geoff.
Ah yes, plumping up the seals is supposedly one of it's properties (I'm not sure how it actually does that though).

As you say quite a few use alternatives, folk seem to have their own favourite 30W oil - and get along fine with it