Not happy...iron higher than ever, lead was higher than ever, viscosity was elevated...and that's comparing similar mileages to Rotella CJ-4 15w40. There was NO towing on this oil, only highway miles and some mixed city/highway.
19,500 on the oil, 6 quarts of make up at 10k with a bypass change. Blackstone recommended dumping the oil because of the lead.
Fe - 22ppm (elevated, typically 10 or less...only ever this high when towing heavy for long miles)
Cu - 4ppm (typically less than 2)
Pb - 10ppm (elevated, typically 3 or less)
Moly - 318ppm (not found in Rotella)
Silicon - 5ppm (only 1ppm higher than typical)
Ca - 1235ppm (1000ppm lower than Rotella)
Mg - 813ppm (not found in Rotella)
Ph - 1004ppm (similar to Rotella)
Zn - 1224ppm (similar to Rotella)
SUS - 79.7 (tagged as elevated)
cSt - 15.44 (tagged as elevated)
Insoluables - trace (typically less than 0.4%)
TBN - 6.7 (similar to Rotella)
Even when it was "bad", the Rotella showed better numbers on similar mileages. So I will be dropping the Schaeffers in lieu of Rotella 15w40 since there is no perceived benefit to running synthetics in this truck.
19,500 on the oil, 6 quarts of make up at 10k with a bypass change. Blackstone recommended dumping the oil because of the lead.
Fe - 22ppm (elevated, typically 10 or less...only ever this high when towing heavy for long miles)
Cu - 4ppm (typically less than 2)
Pb - 10ppm (elevated, typically 3 or less)
Moly - 318ppm (not found in Rotella)
Silicon - 5ppm (only 1ppm higher than typical)
Ca - 1235ppm (1000ppm lower than Rotella)
Mg - 813ppm (not found in Rotella)
Ph - 1004ppm (similar to Rotella)
Zn - 1224ppm (similar to Rotella)
SUS - 79.7 (tagged as elevated)
cSt - 15.44 (tagged as elevated)
Insoluables - trace (typically less than 0.4%)
TBN - 6.7 (similar to Rotella)
Even when it was "bad", the Rotella showed better numbers on similar mileages. So I will be dropping the Schaeffers in lieu of Rotella 15w40 since there is no perceived benefit to running synthetics in this truck.