How do I get a greasy/oily substance off my leatherette car seat?

Question

Somebody with grease or oil on their clothes sat in my seat, and no cleaner will remove it. When it is hot, the seat gets all oily and shiny. The material is leatherette (plastic). Please help, it is a leased car!! What kind of cleaner should I use?

Answer 1

Try some good old WD-40 or Goo Gone .