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