My car is showing the oil sine?

i have cheaked all the liquid but all of them are full. Even after i add engin oil still the sine is on. i am still driving my car but i am afraid that the problem might be dangerous. so can you help be identify the problem and cost? thank you so muchMy car is showing the oil sine?
the oil light means there is little to no oil pressure, if you keep driving the car the engine will die, you need to fix the problem, first check to see if the oil sender unit wire has come loose, if not then check to see if there is oil pressure at all, get a pressure gage and put in in place of the sending unit, if it reads between 30 to 40 psi at idle, then you need a new sending unit, if there is no pressure then you need a new oil pump.My car is showing the oil sine?
the oil indicator light is on for a reason...decreased oil pressure. if you say you added enough oil, it means that your engine has low oil pressure. you can add some thicker motor oil (40 weight) to see if its better. after changing it, if it doesn't go away, you might need a motor soon.
NEED MORE INFO!!!!!! DO you really think all cars and engines are the SAME??? What year, make, model, engine size, country of origin?!?!?! You may have a clogged up oil pressure relief valve from using cheap, regular oils for a long time. NEED MORE INFO!!!!
that is the low oil pressure light. your pressure is below the spec that was set up by the manufacturer. TOW it in and have it checked out.