The latest sample is on the top most row. The bottom rows, if I remember correctly, refer to the same batch of oil (kendall 10w30+M1 15w50+ makeup oil) taken some thousands of miles apart.
The recent reading refers to summer oil, 3 liters Napa 15w40 + 1 liter M1 15w50 + ~1/3 bottle of molyslip, which seemed to add perhaps 120 to 160 ppm of Moly. (The uncertainty because we don't have any data on Napa 15w40. Yet some suggest Napa 15w40 is Valvoline 15w40 which has a good dose of moly in it ~60 ppm) Lot's of freeway driving, hence no fuel dilution like some of the winter readings on the earlier batch.
Sample #1, like sample #3 was drawn from the oil filter, while #2 was taken from the drain hole of the pan (#2 was either a bad reading or I ended up with some iron sediments).
Also, I would guestimate the new Molyslip to add about 450 ppm of moly if diluted in 4 liters of oil.
Sample #1 and #3 suggest the oils are doing a wonderful job, assuming that it is meaningful to draw the sample from the oil filter. I assume that when I draw the oil from the filter that some of it comes from the filtered half, and some from the unfiltered part. One question remaining is how much of the wear particles end up trapped in the filter. Can anybody guess how big the typical wear particle is?
The recent reading refers to summer oil, 3 liters Napa 15w40 + 1 liter M1 15w50 + ~1/3 bottle of molyslip, which seemed to add perhaps 120 to 160 ppm of Moly. (The uncertainty because we don't have any data on Napa 15w40. Yet some suggest Napa 15w40 is Valvoline 15w40 which has a good dose of moly in it ~60 ppm) Lot's of freeway driving, hence no fuel dilution like some of the winter readings on the earlier batch.
Sample #1, like sample #3 was drawn from the oil filter, while #2 was taken from the drain hole of the pan (#2 was either a bad reading or I ended up with some iron sediments).
Also, I would guestimate the new Molyslip to add about 450 ppm of moly if diluted in 4 liters of oil.
Sample #1 and #3 suggest the oils are doing a wonderful job, assuming that it is meaningful to draw the sample from the oil filter. I assume that when I draw the oil from the filter that some of it comes from the filtered half, and some from the unfiltered part. One question remaining is how much of the wear particles end up trapped in the filter. Can anybody guess how big the typical wear particle is?
code:
Sample ID Date Sampled Date Received Time/Miles on Oil Component Hours/Miles Fluid Brand Fluid Grade Condition
9922101-R-1350 11/18/2004 11/18/2004 5500 122600 NAPA NORMAL
34502191-813 06/09/2004 06/16/2004 4850 117400 KENDALL NORMAL
34502191-387 02/05/2004 02/05/2004 1500 114000 KENDALL NORMAL
code:
Sample ID FE CR PB CU SN AL NI AG MN SI B NA MG CA BA P ZN MO TI V K
9922101-R-1350 2 0 0 6 0 1 6 8 182 0
34502191-813 28 0 1 8 0 0 0 0 181 0
34502191-387 0 0 1 4 0 1 5 11 204 0
code:
Sample ID visc40
cSt visc100
cSt water
% SOOt
fuel
% glycol
9922101-R-1350 14.5 0 1 0 0
34502191-813 13.1 0.1 2 1 0
34502191-387 11.8 0.2 0 3.5 0