I always do the extended change on mine. Just rolled over to 94k today and I just started driving 900 miles/wk. I did a filter change + topoff at about 4k, then a complete change 4k miles after that. Started with Mobil 1 for the first 50k miles, then went to Wal-Mart brand syn. No problems with either. Right now, no sludge, no ticks on startup, and still runs smooth as new. Now that I'm driving a lot I'm gonna up it to about 6k for filter change, then another 6k for a complete change. If the oil starts looking bad or the engine starts sounding different, I'll change my ways. Otherwise I'm not wasting my time or money. I plan on killing this car over the next 2 years so I'll let you know how long it lasts. I'm fairly confident things will be ok.
Last edited by tstone; 05-01-2008 at 06:48 PM.