After years of use, I noticed that the hand pump (Bravo 6 by Scoprega)
I use to pump up my float tube had instructions that recommend oiling
the moving parts periodically. The parts are made from some species
of plastic. The directions do not specify what kind of oil to use.

A search on Scoprega's website, and the web generally, produced no
results giving me information about the kind of oil to use.

Can anyone help me?