Power Steering Fluid

[berrybus]

My MCI 9 bus manual states that I should use motor oil to put into power steering unit....I feel a little uncomfortable with that, my thoughts are that it should be hydraulic fluid, oil or power steering fluid....

What is the experience of the group regarding this matter?

Jim

[Burgermeister]

30Wt detergent is fine.   I used to rebuild PS pumps for a living.  Factory instructor gave me the info, just don't mix with other "approved" fluids,

 

Marc Bourget

[Ross]

The manual says 10W40....