I just noticed after a full turn on my steering wheel in Park that I got the high pitch "ERRRR" sound. CHecked and on Cold, my Power Steering is almost on Low. Before I add Napa dexronIII ATF, did anyone mix 2 different brands of PowerSteering fluid? Wanna see who did and if any consequence was shown.
Recommended not to Mix but ahhh.


TIA,
walter

 

that would be me although i never did it in my subie but there is absolutely no difference noticed in my yota truck.... hope that helps a little i really dont think it makes much difference

 

I have on other cars to make sure the steering rack is properly lubricated. Nothing sucks more than changing out a steering rack/pump since you didn't have enough fluids. As long as the two brands meet the dextron III standard you should be ok. If it's just to top off I wouldn't be worried.

Jon

 

hydraulics is hydraulics....unless its really really loud...i normally just live with it until the pump either craps out or leaks...

that noise is during turning (load)...worse when at a full lock position (full left or full right)?

 

yeah hydraulics is hydraulics you can flush it out if you wanted to but i dont see any sense in doing so

so long u add the factory recommend fluids

 

I think its at full right. Only when on cold it makes the sound, but when on warm, no sound exist.

Thats what I was thinking and it shouldnt matter if I top it off with a different brand P/S fluid but the PDF manual states not to mix so Im trying to find out if anyone did mix p/s fluid before and if it will cause the pump to fail which i highly doubt but damn gremlins like to pop up when working on the rides, well mostly on my 7 than my impreza but still... Does anyone know if the factory p/s fluid is by Redline. Well thats according to subaruparts.com. Oh well gotta refund the napa p/s fluid and go see rick tomorrow. Hope the roads wont be as messed up as today.

 

i would go ahead and flush it and maybe try and find if theres a leak... since your losing fluids it has to be going some where right?

 

just dont add those fix a leak crap...then your in for a painful fix it right bill

 

Thanks for the replys but dont worry boss's, there is no leak anywhere and my impreza already has almost 104,000 miles and the i didnt fill or top it off since i got the car in 2004. Plus I always checked it during my 30k, 60k,90k checkups and was good until now at the borderline Minimum when Cold.