I would not recommend using any "care" products on leather steering wheels and gear knobs. They will most likely only accelerate the wear of your steering wheel or make it excessively slippery/shiny. What you want is a clean steering wheel with a natural matt finish.
So you're best of with regular cleaning with mild soap (Marseille soap is great and gentle or you could use a mild dilution of APC) and a brush. Microfiber towels are usually seen as too aggressive for coated leather steering wheels so I would instead use a 100% cotton towel to wipe the wheel clean and dry after brushing with soap. You can use a microfiber too but be extra careful and only press it on the steering wheel rather than dragging it along the surface.
Just my two cents, I hope it makes any sense. : ) (I am not a native english speaker nor writer so...)