IF the adhesive is crunchy, GENTLY drag a new single side razor over the top to RAKE not cut the adhesive. Don't drag the whole surface at once. Drag OFF the cover, not ON to the cover.
If it is softer,
Like the guy said, peanut butter (OIL) is a good softener. Just about any type of oil will work. Work quick, a little dab will do ya. Dip a Q-Tip in baby oil, 3 in one, or what ever you pick. Work the spot with the Q-Tip and wipe. It's better to treat more than once than over do it and have the oil penetrate the covers ink and then into the paper product..
If you get it down to a science, then wipe the corner once or twice with a little isopropyl on a toilet tissue, ONCE or TWICE, no more..
Just so you know, what mechanics are really good at (IF they are worth a hoot) CLEANIG THINGS... 3/4 of my time was cleaning things so I could fix them...GROUT and drilling MUD.. Wonderful to clean..
If it is softer,
Like the guy said, peanut butter (OIL) is a good softener. Just about any type of oil will work. Work quick, a little dab will do ya. Dip a Q-Tip in baby oil, 3 in one, or what ever you pick. Work the spot with the Q-Tip and wipe. It's better to treat more than once than over do it and have the oil penetrate the covers ink and then into the paper product..
If you get it down to a science, then wipe the corner once or twice with a little isopropyl on a toilet tissue, ONCE or TWICE, no more..
Just so you know, what mechanics are really good at (IF they are worth a hoot) CLEANIG THINGS... 3/4 of my time was cleaning things so I could fix them...GROUT and drilling MUD.. Wonderful to clean..