The best way that I know of to remove the oil is a de-greaser
called SlapShot from Walter.
Somehow,
I doubt I'm going to find a product called SlapShot in Florida :-)
Actually, I did search for it in internet, and came up pretty much
empty.
A good substitute is brake clean which is available at any auto
parts store for a couple of bucks a can.
I've used
this before, but would worry that it might be a bit harsh for
fiberglass. I'll set it and see. I've also had pretty good
success with Castrol Super Clean, and other less
toxic degreasers. I'll clean it up the best I can,
then sand (Oh, joy) off the top layer, then probably clean again.
I'm sure I can get something to
stick.
Rusty
(flowmeter arriving today)