I'm a newbie to this forum (came over from vwvortex.com). I have been using Mobil 1 synthetic oil 0w-40 in my 2002 Passat with 18.5k miles. When I came to my VW dealer last I asked for an alignment and I got an alignment and an oil change. I didn't ask for an oil change and I usually provide my dealer with the Mobil 1 oil. The dealer called prior to me picking up the car and tried to convince my wife to get an oil change. When I was at the dealer they told me they made a mistake and changed the oil already. They didn't charge me for it. I'd like to know if there is any problem running the regular oil when I was running synthetic before? I'd like to keep using synthetics in the future and I usually change my oil every 5000 miles.
Thanks for the info,
Dani
Thanks for the info,
Dani