OK, as a profession I do mobile auto reconditioning. I mostly fix scratches, dings, dents and exterior work for used car dealers and private owners who have lease returns or want their cars looking good. However, I do some interior reconditioning as well, so I thought I'd share a few pointers.
As everyone knows the Escalade seat bottoms wear like no tomorrow! Instead of spending $200+ (EACH!) on a new seat bottom, I'd rather freshen it up a bit, much like I do on lease returns and used cars. You will need a $9 bottle of SEM SOAP and an $11 bottle of SEM 149B SHALE (#17203) Classic Coat leather paint. You can find these at most auto body supply shops. SEM has a list of their distributors on their website.
Lets get started! Here's what you need:
^^^ Notice the slight discoloration? ^^^
You will need to thoroughly clean the leather to be painted to get rid of any conditioner or grease left behind. Dab a little on a heavy duty Blue paper towel and use a spray bottle to spray the leather with water. Mask the area you don't want over-spray.
You will want to apply 3-4 light coats. You may want to go slightly heavier to fill in the "cracks", NOT THE CREASES! If you look closely at the seats, you will notice the black "dirty" spots are actually really small cracks. Those will be filled in.
And the other side.... (sorry no before pics, it was just as dirty/worn as the driver side)
Pics don't do any justice. The difference in person is night and day! Although the problem with the creases will not be solved, it will definitely make you happier to live with. The paint is amazing, the blending properties within the SEM paint are unbelievable. You will notice the paint is really not a paint, but more like a dye. It just disappears into the leather and blends perfectly. You will not have to paint the entire seat. Just don't lay the paint on thick, and you will be pleased!
Re: Diy - freshen up leather seats for $20 - no more ugly seat bottoms 
