Worth changing PS fluid?

[trackside]

I've noticed how heavy my steering is compared to a few other 900's of the same age ( 91) - has anybody noticed a lightening up of the steering after changing the fluid or is it just getting worn out? There is no notchyness or morning stiffness -it's just heavy!

[cdaly]

At EUR13 for a bottle of fluid, it's probably worth trying. It made a huge difference in noise on mine when I changed it. Not sure if it changed the behaviour otherwise though.

[Matt88S]

I've noticed also if you oil the joints in the steering shaft sometimes that helps a lot. They get stiff with age. You might give it a try.

[Basre]

Change the PS fluid EVERY couple of years.. OR face replacing the Rack.
Standard GM type fluid (the correct stuff.. it IS a GM rack) is about $4 a litre in my part of the world..
Greedy *******s in yours

[Matthew]

Are you sure about that? The collective experiences, knowledge and insight of this forum's members would indicate otherwise.

[Basre]

Sure about What?
If you mean replacing the PS fluid ? You bet!
been doing this for over 20 years..,, while no guarantee, but frequent changes have have seemingly kept replacements at bay for a lot of cars.
But hey! it's your $4 and ..IF.. you wanna save it and the 1/2 hour it takes every couple of years for a fluid change :-)

[cdaly]

Not so sure about the standard GM fluid bit. The Saab fluid for pre 94 is clear rather than coloured like the post '93 stuff. Both are about the same price from Saab {EUR13} so I though it worth the extra.

[DaveS]

I know when I got my replacement rack (for the 84 T16s) that all the power racks used by Saab were built by - guess who? GM.

If you look at the fluid that is in the rack if (when) you buy a replacement, you'll notice that the colour is the same red as standard GM spec fluid...

Anyway, whatever works

[Matthew]

Originally Posted by Basre

Sure about What?

About using cheap GM PS fluid.

[900 spg]

Hello to everyone!
I remember posting a long one about this some time ago but I cannot seem to find it. Anyhow in a nutshell:

The original fluid used in the car was the famous Texaco PS, which, however, was sold only in 25 leter barrels or specially packed in 1 leter bottles for saab. very hard to find these days.

The PS fluid used in ALL rebuilt racks is the standard GM fluid of today or equivalent.

Rgds

Dusan