In a 2000 Passat V6 there is a bottle that says to use mineral oil only It is located near the front driver side What fluid goes in there I've have been told either hydraulic or power steering?

:Yes, the 2000 VW Passat requires a special mineral-based hydraulic fluid for the Power Steering system. One company that produces this mineral oil is PENTOSIN. The specific product is referred to as "CHF 11S". This fluid works very well with the most recent generation of hydraulic systems, including power steering, rear axle steering, hydro-pneumatic suspension, stability and traction systems, and so on. It is used in many of today's popular European vehicles.