Hey everyone,
I recently took an oil sample from my Corvette C6 Z06 after the car had been sitting cold for a couple of weeks. I sent this sample to ALS labs via NAPA and it came back with surprisingly low metal levels in the oil.
I know the correct procedure for getting the most accurate oil analysis is to take the sample after the engine has been run up to temperature so I am wondering whether taking an oil sample after the engine has been sitting a while, will present more or less metal in the oil?
I know that a cold oil sample wont show anything useful in terms of water or fuel dilution, I am choosing to focus on metal levels for this discussion. In my mind, taking a cold oil sample should present a worse case scenario in terms of metal levels due to the metal having settled at the bottom of the oil pan after sitting for a long time. Is that thought accurate? Or rather, would warm oil have more metal suspended in it and therefore show a higher metal reading?
For context, the last two oil changes have shown the oil to be somewhat glittery, but the engine shows no loss in oil pressure or any signs of distress and that first oil analysis i sent out showed lower than average metal in the oil compared to other LS7 reports that I have seen. Therefore, I am trying to get an accurate idea of what metal is actually in the oil and how much there is.
Thanks everyone.
I recently took an oil sample from my Corvette C6 Z06 after the car had been sitting cold for a couple of weeks. I sent this sample to ALS labs via NAPA and it came back with surprisingly low metal levels in the oil.
I know the correct procedure for getting the most accurate oil analysis is to take the sample after the engine has been run up to temperature so I am wondering whether taking an oil sample after the engine has been sitting a while, will present more or less metal in the oil?
I know that a cold oil sample wont show anything useful in terms of water or fuel dilution, I am choosing to focus on metal levels for this discussion. In my mind, taking a cold oil sample should present a worse case scenario in terms of metal levels due to the metal having settled at the bottom of the oil pan after sitting for a long time. Is that thought accurate? Or rather, would warm oil have more metal suspended in it and therefore show a higher metal reading?
For context, the last two oil changes have shown the oil to be somewhat glittery, but the engine shows no loss in oil pressure or any signs of distress and that first oil analysis i sent out showed lower than average metal in the oil compared to other LS7 reports that I have seen. Therefore, I am trying to get an accurate idea of what metal is actually in the oil and how much there is.
Thanks everyone.