Clean and protect yes 'condition' no. It is completley unecessary to 'condition' your auto leather with anything other than water. Conditioning products cannot get through the finish on the leather to do anything to the leather itself. Protecting the finish is what should be done to help prevent any dirt from being absorbed into it and also to add UV protection. Simple water based products are quick and easy to use but make sure you use ones that have been proved to actually do some protecting as there are many that dont (even if they claim to do so)