'87 S3 white spots on steering wheel

Car is in a garage but it’s still humid here. I’m not sure if it’s mold or mildew.
I could use some suggestions as to what to use for it.


Leatherique sells a group of products to restore your steering wheel. If you visit the post above this one, you will see a photo of my '87 XJ6 including the steering wheel.

Look at the post on the site called ‘dry leather’

I‘d use vinegar and then some leather conditioner, at least that’s what I‘ve been told to use when the leather is moldy.