Quote:
Originally Posted by BigRussia
Got my first Blackstone Oil analysis report for my 2011.5 M3 (Sept '10 Prod Date) taken at 53,200 miles. From their comments looks like I got some good news, though since I bought the car used I didnt have the exact miles for the oil or make up oil added but I had pretty accurate estimates. I took this sample during a oil change and am now running Liqui Moly 10w60. I already received 2 more sample kits from Blackstone, when should I do my next oil change to get a more accurate sample for trending? Thanks for any comments and inputs.
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You need to start paying for TBN and TAN. Without that, you are guessing on the change interval. Since this is your first report it's hard to say if anything is "bad". The whole point of oil analysis is to establish a baseline for your exact motor and driving habits, then monitor for deviations from it. That being said, there's nothing serious like oil that's thinned out, contaminated with coolant, etc.
For the next one, go to 7,500 and pay for the TBN & TAN.