Tilt Trim Hydraulic Fluid, Which Fluid?

[dfwyatt]

To run the hydraulic til trim rams, what type of fluid do you use? And whats the best? I have a 4.3L + Aplha One.<br /><br />I have hear dmotor oil, atf, and others? What should I use?

 

[Don S]

Re: Tilt Trim Hydraulic Fluid, Which Fluid?

Mercruiser recommends 10W30 motor oil.<br />Check in your owners manual or service manual, it's in both.<br /><br />This is from the owners manual.<br /><br />

 

[beezee28]

Re: Tilt Trim Hydraulic Fluid, Which Fluid?

I have a 3.0L mercruiser 1997 and the manual said to use a 30 weight oil. The change the oil last season and replace it with the 30 weight oil.

 

[BoatinBen]

Re: Tilt Trim Hydraulic Fluid, Which Fluid?

I have an OMC Cobra 3.0 but the tilt/trim motor looks as if it has ATF in it(red as cherry koolaid). Should I drain and change it? If so, what does it call for and how how to completly drain it?

 

[Don S]

Re: Tilt Trim Hydraulic Fluid, Which Fluid?

OMC and Mercruiser are different.<br />It depends on what pump you have. They used different pumps for different years.