Get some driving gloves? If it’s already faded and you’re planning on replacing it anyway, why worry about it? I use a cheap $7 neoprene stretchy wheel cover from autozone. Does the truck and leaves no residue behind after you take it off.
I use Pinnacle Black Label leather care products (cleaner/conditioner/protectant), but any decent leather cleaner would work. I recommend getting a horse hair brush (it’s soft), spraying the cleaner on the brush and working the steering wheel leather. Once done scrubbing, wipe with a water dampened rag. Then hit it with a conditioner and see how it looks.
Used some turtle wax brand cleaner.
Found some mystichrome colored leather!
But a lot of it is worn...i spent an hour plus on it. I'll try more next weekend and touch up my Vert's steering wheel too before it turns bad like my Coupe's.
Definitely feels better to drive...not covered in 14 years of sweat, oil and dirt.