This time, I extended the OCI past my normal interval. You can see three previous analysis results, with the intervals listed. The Iron, Lead and Silicone readings are higher than it should be if you extrapolate from the previous results.
As an example, consider the Iron reading of 21 ppm. The Dec 13 analysis has 13 ppm on a 9270 km interval. Extrapolating gives 10980/9270 x 13 = 15.4 ppm.
Do the current results indicate that the OCI was over extended? I expected the Mobil 1 oil to handle the extended interval, even though I went about 10 % past the OLM on my truck. I was using a Mobil 1 oil filter. My oxidation, sulfation and nitration readings are also high when compared to previous readings.
As an example, consider the Iron reading of 21 ppm. The Dec 13 analysis has 13 ppm on a 9270 km interval. Extrapolating gives 10980/9270 x 13 = 15.4 ppm.
Do the current results indicate that the OCI was over extended? I expected the Mobil 1 oil to handle the extended interval, even though I went about 10 % past the OLM on my truck. I was using a Mobil 1 oil filter. My oxidation, sulfation and nitration readings are also high when compared to previous readings.
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