Ummm, yup... Your local NAPA store has it on the shelf, it's called
engine dye... Got, it, put it in, fired up the UV light and discovered
everything on the engine glows in UV, especially gaskets... Then I
wandered over to the starboard engine and discovered that dip stick
glows also... Turns out theAv oil I'm using is fluorescent without the
dye... Back to square one...

denny