Yeah good luck with that. The rubberised finish is a reeeeal pain to clean, so is the brushed steel deck around the keyboard. Run a damp sponge over it with some sunlight on it and lo behold.
The best thing I've been able to do is wet sponge with windex to try get the oil out, rubbing alcohol 100% doesn't do it for me.. it's like you need a rubber friendly degreaser or something.
With the steel brushed deck, run a cloth up and down along the grain to get rid of the oils, need cleaning product of course to help.. again I use windex, still need a firm rubbing to get it out.
She's hard to keep clean, dirty girl the G750.
❤