Car squeaking??

hi, i have just noticed a squeaking/creaking noise coming from the front of my car it only happns when i am stopping the car or turning slowly or pushing down on the front of the car does it too!!! my neighbour said that its likely that the anti roll bar just needs some grease, could this be the cause and if so how do i do it?? plz help as i am trying to sell my car also and dont want no squeaking for any test drives!! Thank you|||this could be a bad shock. or a broken spring retainer.. jack the car up or roll on some rino ramps.. push down on the side where the squeak is coming from. then you can locate the companent that is causing the noise.. there are so many possibilities. and you have to locate the source ok|||more info..what car?what year? miles?...1 bad struts...2 bad balljoints.3..brake or wheel bearing