Power steering/Fan fluid
On my Islander, facing the engine it is on the right, a big black tank, holds a lot of fluid, has a dip stick. I was like you, even though I had manual, there was not one line mentioned about a power steering tank. I looked and looked, finally I unscrewed the cap and behold a dip stick was on the end and the fluid was red, AH! I found it! Fortunately, it was filled to where it should.