Welcome Car Dealers, Marketing Directors and Internet Sales Managers
you can probably get by with oil changes every six months.. changing the oil does several things.. it gets the dirt out of the oil .. stuff in oil can be carbon.. slight amounts of metal coming.. it also gets the acids that build up from moisture. please if you only drive you car a few miles.. try to take the long way home once in a while. so you put 5 to 10 miles on it to bring the engine oil and transmission fluid up to normal operating temps. this will cause any moisture that collects to evaporate out.
I didn't find the right solution from the Internet.