I have used and continue to use engine cleaner purchased at Farm and Fleet for about a buck a spray can. I spray it on cold, let it sit for a couple of minutes and wipe it right off. It leaves no oil residue and works very good. It has done no harm to my the paint finish on my aluminum boat.
This same stuff works great for cleaning fishing reels. It is a degreaser. I remove the spools, spray some on the outer shell, let the foam go down, and wipe it off. I give it bit to get throughly dry then give the oil spots just a drop of one of the new super light oils out. Your reels will look like brand new again.
If you are going to remove the grease packing this will do the job there too. Just be sure it is all wiped out before applying new grease.
Don’t knock this till you try it, it really doesn work and you can do it without pulling out a hose.