I dont see any fluid when I remove the cap at the steering wheel. It is under pressure though because I checked it the last couple years and everytime I loosen the cap I can hear the pressure release. I can not see any fluid in there when I checked today but I did not see any last year or the year before either. It seemed to work fine last year and this was the first time in the water since storage. I spoke to someone about how full it should be and I thought they told me as long as there is fluid in the hose you are fine.