ATF or Manual fluid???
I just put Red Line ATF in... should I have used manual transmission fluid? The Bentley said use ATF, the tranny says ATF, when I emptied the fluid the previous owner was using, it was red... but some people say I should use manual oil... What would the difference be? I live in California, it gets 20 deg F at the coldest part of the year.
'90 535i 5-speed