Just changing the oil on the Saff, tracked down a fitting from a hydraulic supplier last year that is male M14 onto a 16mm hose barb elbow, does the job fine, but it's worked itself loose, wasn't leaking but bit of a concern.

Any suggestions for a more suitable fitting?

 

Aeroquip if you want to fit and forget mate but obviously the sump would have to be removed to weld the fitting on

 

Cheers, mine goes in at the sump plug, so under the oil level.