Redline 5w-40
Cat SOS Lab
Miles on oil: 10015
Miles on motor: 100021
Vis @100C 14.2
Al 3
B 4
Cr 2
Cu 5
Fe 26
Pb 3
Mg 198
Mo 599
Ni 1
Si 8
Na 26
Sn 0
Zn 1438
Soot .25%
Water 0
Fuel 0
Anti-freeze trace
TBN 8.5
Note from the lab: Critical: Action required. Sodium level is high. Trace Glycol in oil. Monitor coolant usage/levels. Pressure test cooling system to identify source of leak (oil cooler, head gasket, etc.)
That is why I do oil analysis. The oil cooler was found to be defective, and replaced.
Car is driven about 90% highway and 10% creep and go on what we call a freeway.
This is the second full Redline oil change cycle. One more cycle is planned to get a good baseline.
Fuel Power was used during the period as a fuel additive. The soot load seems to be better controlled as a result.
OEM oil and air filters were used.