You can check if you need oil top up by raising car to full hieght on adjuster in the car then see if the float in the oil top up tank id between the marks on the glass sight, if not top up. Also if oil level ok then raise car to full hieght, turn engine off - this should lock the car at that hieght , jack the car up with whell of the ground and see if the wheek bearing is ok by garbbing the wheel top and bottom and rock it to see if there is any play, if no then ok. start looking for worn bushes etc around the the wheel area. Also see my notes on the this sight called useful info that will help to. good luck