I am having my steering arm rebuilt and would like to know some alternatives to the Hynautic 5606 steering fluid. I know Phillips 66 is compatible. Is Teleflex SeaStar Hydraulic Fluid HA-5430 a compatible alternative or Seastar HA 5430H? I can get a gallon and of Phillips 66 on amazon for $43 (including shipping). Thank you.
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02-10-2018 11:30 AM #1
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Hynautic Mil spec 5606 alternative
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02-10-2018 11:39 AM #2
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Re: Hynautic Mil spec 5606 alternative
Seastar works. Comes in quarts and gallons.
I have no idea what the phillips 66 is .Scott
41C117 "Hattatude"
Port Canaveral Florida.
Marine Electronics and Electrical Products Distributor.
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02-10-2018 01:13 PM #3
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- Sep 2017
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Re: Hynautic Mil spec 5606 alternative
Phillips 66 X/C 5606A Aviation Hydaulic Fluid.
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02-10-2018 01:48 PM #4
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- Feb 2007
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Re: Hynautic Mil spec 5606 alternative
5606 is red, so when it leaks you know exactly what it is. When the flybridge Hynautic seal started leaking, my daughter pointed out, 'Dad, the boat is bleeding."
I prefer 5606 for that reason, and I don't think that seastar really saves you much.Mal
Miss Molly
'85 53ED #750
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02-10-2018 05:17 PM #5
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Re: Hynautic Mil spec 5606 alternative
Regular prestone or walfart power steering fluid. Works the same. If you want it to be red, put in a little ATF.
FTFD... i drive a slow 1968 41c381
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Re: Hynautic Mil spec 5606 alternative
Power steering fluid (Dextron II) is OK for warm climates, but not for very-cold.
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