I know people stress over the pollution aspect of gas, but I use gas in a tray outside to clean off old glue before taping.
I fill a metal tray just enough so it covers the rim but not enough so it covers any stickers on the inside of the rim which would destroy stickers.
Usually less than 2 full cups of gas. Tray is placed in the shade so gas doesn't evaporate. I do it when I'm working outside anyway. Turn wheel about every twenty minutes or so, wiping as I go. Brings it right back to the bare metal and then I wipe it with rubbing alcohol on a rag. On goes tape.
I figure if I drive to grocery store I'd use more gas, and once wheels are taped and new tires installed I'll bike for glsmall grocery orders which saves gas.
Also, I don't know if anyone suggested this before but I use my old VAR truing stand to install tape. Easier to center tape using that.
I don't like using gas as as solvent because it's so dangerous. But if I
were going to use it--which I suppose I might in an isolated outdoor area--I'd use "white gas" (usually sold now as Coleman fuel), formulated for use with portable stoves. It doesn't have the detergents and other additives found in automotive gas. When it evaporates there's no gasoline smell left behind.