From Polaris Labs.
8700 miles on oil, 218000 miles on vehicle
Wear Metals
(Element: 193k-RL 5w30, 200k-LS30, 209k-PU 5w30, 218K-GC 0w30)
Fe: 103, 33, 27, 16
Al: 16, 10, 9, 5
Cu: 34, 29, 11, 11
Pb: 24, 3, 3, 2
Sn: 5, 2, 1, 0
Contaminant Metals
Si: 21, 15, 12, 11
Na: 20, 40, 21, 12
Multi-source Metals
Mo: 535, 160, 62, 10
B: 27, 8, 40, 5
Additive Metals
Mg: 105, 252, 55, 474
Ca: 2464, 2624, 2428, 1893
P: 1076, 1001, 783, 840
Zn: 1403, 1277, 945, 1071
Fuel dilution: Soot: Water:
3.5 qts. added during OCI
KV100: 11.6, 12.2, 12.2, 12.7
TBN: 2.64, 2.44, 2.69, 4.13
Oxidation: 109, 101, 31, 16
Nitration: 15, 18, 16, 17
Polaris Comments: Data flagged for presence of Magnesium and viscosity out of grade (high). No immediate need for maintenance action.
German Castrol may have been noisy in the engine, but turned in a good UOA. It has the best TBN retention of the oils I've run so far. This oil had a lot of life left when I drained it. Sadly, it seems the engine has settled at an oil consumption rate of 2500 miles/qt. In the good old days, it was 6000 miles/qt. The oil wasn't really stressed during the OCI, however. No track days, just daily driving and highway cruising.
The new oil fill is a 50/50 mix of PU 5w30 and PUE 5w40. I still think I'll be taking it to track days this year, so I put in a thicker blend.
8700 miles on oil, 218000 miles on vehicle
Wear Metals
(Element: 193k-RL 5w30, 200k-LS30, 209k-PU 5w30, 218K-GC 0w30)
Fe: 103, 33, 27, 16
Al: 16, 10, 9, 5
Cu: 34, 29, 11, 11
Pb: 24, 3, 3, 2
Sn: 5, 2, 1, 0
Contaminant Metals
Si: 21, 15, 12, 11
Na: 20, 40, 21, 12
Multi-source Metals
Mo: 535, 160, 62, 10
B: 27, 8, 40, 5
Additive Metals
Mg: 105, 252, 55, 474
Ca: 2464, 2624, 2428, 1893
P: 1076, 1001, 783, 840
Zn: 1403, 1277, 945, 1071
Fuel dilution: Soot: Water:
3.5 qts. added during OCI
KV100: 11.6, 12.2, 12.2, 12.7
TBN: 2.64, 2.44, 2.69, 4.13
Oxidation: 109, 101, 31, 16
Nitration: 15, 18, 16, 17
Polaris Comments: Data flagged for presence of Magnesium and viscosity out of grade (high). No immediate need for maintenance action.
German Castrol may have been noisy in the engine, but turned in a good UOA. It has the best TBN retention of the oils I've run so far. This oil had a lot of life left when I drained it. Sadly, it seems the engine has settled at an oil consumption rate of 2500 miles/qt. In the good old days, it was 6000 miles/qt. The oil wasn't really stressed during the OCI, however. No track days, just daily driving and highway cruising.
The new oil fill is a 50/50 mix of PU 5w30 and PUE 5w40. I still think I'll be taking it to track days this year, so I put in a thicker blend.
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