Hello all, long time lurker here. I purchased this car back in May 2012 and use it as a highway commuter car, family trips etc. While doing my own oil research, I remembered there were not many UOAs for the Chevron Delo 5w-40.
My latest is attached. Same oil used always, but I noticed I had lifter noise on cold start up even with adequate oil levels with the last change. Car is parked in my garage - level surface. I am a bit apprehensive going out to 9,000 miles as Blackstone suggested because of the lifter noise when I hit around ~6,700 miles on the oil. Maybe it was coincidental? Regardless, I am happy with getting 6,500 out of oil.
1st analysis - standard sized Purolator Classic
2nd analysis - longer sized Purolator Pure one (P14610)
3rd analysis - longer zied Purolator Classic L14610
4th analysis - same L14610
The pure one filter seemed to do nothing, so I went back to the classic. I'm spending right at $30 an oil change (Wal-Mart). Car has an AEM fenderwell intake and Cobb Stage 1 flash, v3.1. Car isn't beaten/raced but my wife or I do not drive it conservatively either.