#1
well in my hellraiser, the frets are getting disgusting, and i have some gibson brand cleaning liquids that come in a pack of 3 with red green and blue things on them
i want to clean my fretboard but i dont know if anyone has the same kind of fretboard cleaner and if it can clean abalone too?
i dont want to ruin my guitar already
#4
the polish wont hurt the abalone.. but lemon oil is so much better for your fretboard.

Polish will clean it up fine, but it wont keep the wood on the fretboard as best it could be, the oil is a better cleaner and conditioner.
#5
The Polish won't hurt the inlays. That said, you only need to Lemon Oil once every couple years; do it too much and you risk making the fretboard rot.