Pls help: Should I change oil in my AL4 automatic gear box? The garage explained to me that according to Citroen's instructions, this box shouldstay closed unless something went wrong or the indicator tells us that the oil is tiredÖ But I think, way waiting for something to go wrong? If oil change (& filter) can prevent rapid wear Ė way not do it initiated? The car has now 57000 km on the clock (about 35500 miles) and gives no problem with the box. A friend explained to me way not change the oil: "If you will change oil & filter now, the box which is used to run with the dirty used oil will start to give trouble, slip and maybe even burn the inside entireties because it has build up tolerances and spaces on the pads which were compensated with the old oil that was thicker then the fresh one, adsorbed with the wears parts". So itís a conflict: Or changing oil now, taking the risk that the box will go nuts, or change in a few years, and then it will not help either and the box will need a rebuild. What should I do? Any reply will be appreciated.