neither one...Ok, after reading this
http://detailingwiki.com/index..._Care
I tend to agree that leather conditioner is waste of time and money.
after reading dozens of articles and forums, I am stuck now. Some people say - do nothing with it, some say just clean it with mild soap and some still believe in two steps process (clean then condition)
what I know for sure, leather in ex is no different from other Japanese cars and coated. Leather is different only in European cars (different dying process) and luxury cars like Bently, Rolls-royce etc. which maybe not coated (unfinished) and will absorb water and oils (and conditioners)
So the question now do we need to do anything at all to prolong life of leather/vinyl seats?