My 2006 Saab 9-5 has a no charge scheduled maintenance program. GM will pay for oil changes every 10,000 miles or one year, whichever comes first. The dealer is required to use Mobil 1 synthetic oil, which means $60 for an oil change.
<br/> Most of my driving is short trip in stop and go traffic. I've always changed my oil at 5,000 miles, especially since the 9-5s had engine sludge problems a few years ago. The recommendation was to start changing oil more often.
<br/> The Saab service rep has been telling me that I don't need to change my oil more frequently than the scheduled maintenance program calls for. He said the 9-5 issue had nothing to do with the 9-3.
<br/> I realize that the synthetic oil doesn't break down, but doesn't it still get dirty and cause wear? What do you think?
<br/> Bill in PA