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Use automotive fluid for hydraulic steering???

My 18' center console (1993 Robalo) uses a pretty standard Teleflex Seastar single-engine hydraulic steering mechanism. I live a good distance from any place that sells boat supplies, and was wondering - can I use automotive power steering fluid in the Teleflex unit?

Thanks, Ron M.

bstevens
Jul 16
2006
the higher viscosity of automotive steering or ATF makes the steering stiffer than it should be.

Bill Grannis service manager

Billgran
Jul 16
Is that all? Well, I can dock my friend's boat with my little finger. Is this is the only difference? Does it actually HURT anything?

Ron M.

bstevens
Jul 16
Power steering fluid is good for flushing a seastar system before filling it with the proper Teleflex fluid. NOYB
Jul 17
Sure! power steering fluid is power steering fluid. regaardless .....

bstev...@rock.com wrote:

tschnautz
Jul 16
NO! Go to seastarsteering.com and search for the fluid spec. I think it has a MIL spec. I if you can't find the spec, let me know and I can check it from my bottle.

<bstevens@rock.com> wrote in message

Lost
Jul 16
Sure! power steering fluid is power steering fluid. regaardless .....

And can't be used in a sealed seastar hydraulic system. DO YOUR RESEARCH BEFORE GIVING BAD ADVICE!

Lost
Jul 16
Don't use power steering fluid or auto transmission fluid in your Teleflex steering unless it is an emergency. They tell you that in the installation manual and on their website.

If you can't find the light hydraulic fluid that the steering uses, go to your local airport repair facility and buy or scrounge the TO 15 hydraulic fluid that is used in small planes. That is the same stuff as the factory oil but is dyed red.

Bill Grannis service manager

Billgran
Jul 16
I found this thread from another forum. Apparently there are quite a few substitutes for that fluid.

http://theoildrop.server101.com/cgi/ultimatebb.cgi?ubb=get_topic;f=18;t=000025

thunder
Jul 16
I meant to say HO 15 for the aircraft hydraulic fluid, mil. spec. H5606

Bill Grannis service manager

Billgran
Jul 16
A good friend of mine has used regular automotive power steering fluid in his Teleflex Seastar-I unit for at least 10 years, with absolutely no problem whatsoever. What exactly is suppose to happen when you use this "wrong" stuff? Just curious...

Ron M.

bstevens
Jul 16
   

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