He's now opened it up to find that the previous owner had indeed been putting grease into them....
https://www.facebook.com/groups/morrism ... 977934855/
Car had been off the road for 15 years apparently before he brought it...

That's what I suggested yesterday, perhaps someone had been enterprising, they'd damaged the filler cap threads and adapted the Oil Nipple idea;... but no, they had done the totally barmy instead...

Looking back at his profile, he brought it a couple of years ago and has been slowly working through it...
