Power steering fluid??
#2
If it has mercedes fluid in it, and you are "topping it up", use the mercedes fluid. The mercedes fluid is amber in color.
Otherwise I would recommend a FULL p/s fluid flush with Mobil One Synthetic ATF, flush and replacing the resevoir, because the resevoir has the filter built into it.
Otherwise I would recommend a FULL p/s fluid flush with Mobil One Synthetic ATF, flush and replacing the resevoir, because the resevoir has the filter built into it.