Good post. I’ve used vaseline in my tubes for over a year and a half now with no damage to them. I think that is a myth, or perhaps it may damage the tube over a period of 100 years, but I’ll be huge by then.
Only if you have your cremated remains molded into a strange ash dildo. Hmm 🤔 Honestly, I don’t know for sure but have seen it mentioned here many times, maybe someone else will chime in. I can say that my oldest tube has some “wear marks” around the flange others don’t have. This tube would have had the most petrol type lube use.