[tjbusa]

Ok, came time for my oil change due to time, not use because its life was still at 47%. Anyway I wanted my dealer to do the first one and they could take care of any computer updates or bulletins that may have come out since I took possession.
I paid for a Mobile 1 service which was 77.00 and when I got in my car, I spotted a grease smear on the headliner. I had them get the mechanic and he appologized and used GM upholstry cleaner and got it all off. I checked the dipstick and was cross hatched, good.
I started the car and the oil life was 100%, good. I drove to work and after that, home. I noticed then the oil life was at 98%. I see the computer printed sticker on my windshield states next service is due in Nov and in 3000 miles. Now what did they put in... synthetic or regular oil. I'm thinking make them drain and replace with known synthetic and the correct computer printed sticker. What would you do???