Newbie here, but certainly seems like the place to ask this question.
For the last 20,000 miles I have been running a self-mixed Mobil 1 synthetic and Pennzoil regular (both 5W-30). Basically 2 qt synthetic and 1.5 qt regular in my 1993 Nissan Pathfinder.
I just had an oil analysis done, with 2100 miles since my last change- the metals were: iron 6 ppm, aluminum
Only thing that was high was zinc 896, phosphorus 735 and calcium 2006 ppm, but the lab said this stuff was all additives/detergents and not to worry.
I worry somewhat that mixing the different oil types might be a problem, but considering the results from the analysis, should I?
madkiwi
For the last 20,000 miles I have been running a self-mixed Mobil 1 synthetic and Pennzoil regular (both 5W-30). Basically 2 qt synthetic and 1.5 qt regular in my 1993 Nissan Pathfinder.
I just had an oil analysis done, with 2100 miles since my last change- the metals were: iron 6 ppm, aluminum
Only thing that was high was zinc 896, phosphorus 735 and calcium 2006 ppm, but the lab said this stuff was all additives/detergents and not to worry.
I worry somewhat that mixing the different oil types might be a problem, but considering the results from the analysis, should I?
madkiwi