I bought this coupler /gripper. It works very well.
https://www.ebay.co.uk/itm/Nipple-Gripper-Locks-On-Stays-On-Grease-Gun-G-Coupler-1-8-BSP-UK-STOCK/273778872326?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649

A guide to greasing
http://www.gomog.com/allmorgan9.html#Dynamics


JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"