littleboat Posted October 11, 2015 Share Posted October 11, 2015 I just picked up a 2012 trophy boat. It is a 2102 with an 150 mercury cruiser 4stroke. I'm adding a autopilot to it. The boat has a seastar cylinder for the ram and helm pump. It has red fluid for the hydraulic steering fluid. I see that seastar has a yellow fluid for their systems. Mercruiser uses a red fluid. Are they both the same just different colors? The boat manual doesn't indicate the fluid since it is OB. Can I mix the two, since I will be adding and bleeding the system?Are they others out there that have figured out that have been in a similar situation? Link to comment Share on other sites More sharing options...
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