Originally Posted By: Best F100
Just as I thought - You won't get a consensus as to what is the best oil for this ZO6. Just good suggestions.
So do this - if money is not a factor. Do 6 month Used Oil Analysis on A) Amsoil 5W30 HDD, B) Red Line 5W30 and C) Mobil 1Racing 0W30. Get back with us and report the results to us in 1 1/2 years. Owning a LS7 must make for a nice "science project". Be sure to "beat on it" every now and then, if you are going to drive it year around.
Well... I have an initial UOA from when I bought the car used (M1 5w30); and I will do another at the oil/filter change coming up in a month or so. At this point I am favoring the Redline 0w30 and will plan on doing UOA's at each oil change from here on out. Heck, I might even do one in between changes just because I want to try to anticipate excessive iron/guide wear.
Unfortunately, given the error rates in the testing itself and the possibility of random contamination of various samples, I don't know how conclusive the UOA's will be with a sample size of 1 (ie one vehicle) because I don't know what the deviation of error is for each test/particle, but that might be a reason to call.
The lab I use has universal averages of around 3100 miles per change - so for curiosity's sake I will attempt to sample and/or change the oil at this specific mileage if only so I can also compare to the "average" Z06. I'll be sure to try and report back in 8 and 16 months after each oil change...
I suspect the oil change interval (ie ~3,100 miles) in a street vehicle may simply not be taxing enough to realize any significant differences in wear between two given oils - even two perceived as distinctly different as M1 and Redline.
