I own an 2007 Saturn Aura XR with about 59,000 miles. I've had the\ncar since July of last year and so far I've put on about 23,000\nmiles. I drive on average of about 950 miles per week. I've only had\nthe oil changed twice in the nearly 6 months that I've owned it. Both\ntimes that I've had it changed I've waited until the "oil life"\nreading on the DIC had decremented itself down to 0%. Today, when I\nwas in for my most recent oil change, the oil change tech scolded me\nfor not bringing in the car sooner. I specified that it had been\nnearly 11,000 miles since my last change but that the oil life reading\nhad only very recently went all the way down to 0%. He told me that I\ncan't use that as an indicator as to when the oil should be changed if\nI'm using standard oil. He said that I'd need to be using a premium\ntype oil in order to go that long without a change. I double checked\nmy owners manual and reread the portion that talked about oil\nchanges. As I expected, the manual said that the car uses the onboard\ncomputer to determine when the oil needs to be changed. As well, the\nmanual didn't say anything at all about only using high grade\nsynthetic oils. My question is this - if I'm using regular grade 10w\n- 30 oil should I "trust" the car and only get my oil changed when the\nlife meter decrements itself all the way down to, or near, 0% (even if\nthis means that 10 or 11 thousand miles have passed since my last\nchange) or should I religiously change my oil every 3 months or 3,000\nmiles as has been preached to us since time immeasurable. I think\nthat the oil change tech was probably just regurgitating what he was\ntold when he was hired - "tell everyone that has gone more then 3\nmonths or 3,000 miles since their last change that this is a bad\npractice and that it should be done every 3 months or 3,000\nregardless." Thanks for any help!