Speakking of Steering Boxes . . .

[freewill2008]

> Leroy A. Eckert: My power steering and hydraulic fan
> spec's 10w-30 motor oil, specifically, Texaco but cannot
> see that makes any difference. I know that is the same
> on specific earlier and later models I have seen. I
> would not know why yours is different.???

Actually, it is not different. 10w-30 motor oil is one
of the recommended fluids for the Ross.

> Leroy A. Eckert: However, I would not call the reservoir
> a steering box and I do not know the manufacturer of my
> steering box. I doubt it would take a different oil but
> do not know.

The reservoir holds extra oil that constantly circulates
from the reservoir to the hydraulic pump (power steering
pump), to the steering box, to your fan motor, and then
back to the reservoir.

There could be several oils that would work in your system.
What's important is that you know of a correct oil that
you can obtain and rely on.

Bob Griesel '84 FC31 WLII WA

>
> Leroy Eckert
> 1990 WB-40 Smoke N Mirrors
> Dahlonega, GA
> >
> > For the Ross box in our FC, the book shows a list of approved
oils
> > including one type of 'power steering fluid', a couple of ATF
types,
> > and 2 or 3 motor oils.
> >
> > While researching available synthetic oils, I found that
hydraulic
> > oil parameters include base viscosity (like 30W), multi-viscosity
> > additives, and detergent additives (or not).
> >
> > Because several types of oil are listed for the Ross, my
conclusion
> > is that the recommended oils all have similar specifications for
> > viscosity and additives.
> >
> > Bob Griesel '84 FC31 WLII WA
> > (Who really does know that 'speaking' has ONE 'K'
> >
> > --- In WanderlodgeForum@yahoogroups.com, "mbulriss" <mbulriss@>
> > wrote:
> > >
> > > Kurt,
> > >
> > > Interesting that yours specs a hydraulic fluid. I know my 83
and 91
> > > and Leroy's 90, based on his recent post, spec multi-grade 10-
30
> > motor
> > > oil. I wonder why the difference?
> > >
> > > By the way, the Parts Database and the Bluebird Filters & Belts
> > Files
> > > have part numbers for the reservoir filters.
> > >
> > > Mike Bulriss
> > > 1991 WB40 "Texas Minivan"
> > > San Antonio, TX