Detailing a Kia Optima with leather seats. Like most near luxury cars, the leather is only on the seating surfaces, not the sides or back. I use Lexol on the leather and a vinyl dressing on the rest. Sometimes its hard to tell which is leather and which is vinyl. Lexol on vinyl doesn't penetrate much and I don't think vinyl dressing is too good for leather. Is there a single combo product that can be used on both surfaces?