the dash is telling me 'stop engine/low oil pressure.i checked the oil its full on 1995 Cadillac DeVille

im having to put 2 quarts in every mouth and i cant find where its leaking from but i had a trans flush done and when the car was up in the air, oil was coming from the back top of the engine.theres no oil on ground where i park the car,i dont think its burning oil cause theres no smoke coming out of the what do i do

Asked by for the 1995 Cadillac DeVille
first, you have an oil pressure issue. do not drive this car till it is checked out. have them find out the oil leak as it may be the filter, housing or pressure switch