I have 4+ year old Zymol Leather cleaner and conditioner (Z-507 & Z-509). Do you think that it is still OK to use?
I previously used a spray Mguires leather product that I was not satisfied with. It was greasy and left spots if it was not adequately whipped, with overspray problems. I am...
I have some old (4+ years) zymol leather cleaner and conditioner, shown here:
Amazon.com: Zymol Z-507 Leather Cleaner and Z-509 Leather Conditioner: Automotive
Should it still be OK to use? I have a 2009 BMW M3. I used some Mguires spray on leather cleaner and was not happy with the...