Hydraulic Oil for Trim\Tilt

[BradyA]

I am repairing the trim/tilt for my 1985 90 hp Johnson, but I'm not sure what kind of hydraulic oil to use. Is there a special "marine grade" I should use, or will just regular ol' hydraulic oil work? Thanks in adavance...

 

[WillyBWright]

Re: Hydraulic Oil for Trim\Tilt

Hydraulic jack oil should work, but I've never tried it. Power steering fluid works, but most people use ATF.