The car has about 74,250 miles on it. I used Kendall Liquid Titanium syn blend. I topped it off with O'Reilly's full synthetic. I still plan on waiting until it's been 6,ooo miles to change it. Any thoughts or ideas about what's going on? I haven't decided on what oil I'm going to use next. I've thought about DuraBlend, or Pennzoil Gold. Maybe a HM blend like MaxLife?