I have a 1995 SL600. I need to add some hydraulic fluid to the air/oil suspension resevoir. I have used the MB oil in the past, but it is three times the cost of the hydraulic fluid I can get from my local auto parts store. Can I use regular hydraulic oil, and if so, what spec oil should I get?
Thanks.

 

Thank you.
I guess its back to my MB dealer for more oil.