Use Vaseline on your girlfriend if you can't find better stuff in an emergency situation.

For important things like your glider, Super Lube is better, although I also like Exxon/Mobil synthetic grease.

https://www.amazon.com/Super-Lube-21...ase+super+lube

https://www.amazon.com/Mobil-105527-.../dp/B000LDJ3XQ