 Having been w/ my parents when they bought this new, I have watched my dad and myself change the oil every 5000 miles, and will say you MUST use synthetic, i use castrol synthetic, and I have never had the majority of problems these people speak of, after coming from an old s-10 and porsche 944 the lights shine bright for me, and I have never had oil sludge. I replaced the timing belt, but that was preventive maintenance, and the fuel system has never given me a problem. I did have to replace the idle regulator, but it's whatever. This car has been great for my parents, and now me, it has taken numerous cross country trips, and never given us a problem. I would highly recommend a VW.