Well aside from the fact that I'm apalled at having a thread on leather conservation on a 4WD forum, I guess the times they are a changin'.
I've been round and round with cleaning/maintaining leather car seats. I've found most of the "cleaners" do a good job of cleaning but leave the leather dry afterward. If you have a porous leather surface like a saddle or catcher's mit then Neatsfoot oil is the best, but doesn't seem to soak in to the finish on car seats. The Lexol products make the seat shiny, buy don't seem to "sink in" either. They are waxy and I think most of it ends up on your jeans after sitting in the seat.
The product that I have found that really seems far and away better than anything else is Aerospace 303 Protectant. It is hard to find (hot tub stores and sometimes RV places) and is expensive, but worth it. Use it on your dashboard, leather seats, exterior plastic bits, anywhere you might use Armorall. But instead of just laying down a shiny silicone coat, this stuff actually soaks in and protects the material for months. I swear by it.
