Originally Posted by ChrisD46
OK - let's rephrase this to appease the "Get Off My Lawn" crowd gathered here today : *At what point does the ppm level of Iron /Wear Metals become a concern in an OCI ?
Then it would be interesting to see how the M1 , PPPP , Castrol Edge , QSUD and Valvoline Advanced 5W30 synthetic oils compare in Iron / Wear Metals ppm with their D1 / Gen 2 formulations ? ... If the thresh hold for Iron / Wear Metals ppm levels are so high as to make the topic a moot point in comparing these synthetic oils then so be it ... I will just mosey on over to the : ""Lawn / Small Engine" forum .
It has been stated over and over and backed up from data from oil analysis companies that a properly rated oil has no statistically significant effect on a UOA result. The way you test an oil for differences in wear is through the Sequence IVA and IVB tests.
From my days of running elemental analysis on oil (admittedly a while ago) high levels of metals in a sample are indicative of equipment failure, not oil failure. Even then however, you had to pre-treat the oil via acid digestion since the larger particles do not show up on the analysis unless they are dissolved.
OK - let's rephrase this to appease the "Get Off My Lawn" crowd gathered here today : *At what point does the ppm level of Iron /Wear Metals become a concern in an OCI ?
Then it would be interesting to see how the M1 , PPPP , Castrol Edge , QSUD and Valvoline Advanced 5W30 synthetic oils compare in Iron / Wear Metals ppm with their D1 / Gen 2 formulations ? ... If the thresh hold for Iron / Wear Metals ppm levels are so high as to make the topic a moot point in comparing these synthetic oils then so be it ... I will just mosey on over to the : ""Lawn / Small Engine" forum .
It has been stated over and over and backed up from data from oil analysis companies that a properly rated oil has no statistically significant effect on a UOA result. The way you test an oil for differences in wear is through the Sequence IVA and IVB tests.
From my days of running elemental analysis on oil (admittedly a while ago) high levels of metals in a sample are indicative of equipment failure, not oil failure. Even then however, you had to pre-treat the oil via acid digestion since the larger particles do not show up on the analysis unless they are dissolved.