I have my first ever UOA results. I have stayed near the Subaru recommended 3750mi OCI for severe duty. I'm stage 3 with upgraded turbo, injectors, etc. Probably about 300whp. I have run PU for the last four changes at least, and before that it was PP. I run the 10w30 for a bit more shear protection, which seems to be working. I know I could go longerl, but I want my oil to be in grade, so I'd rather dump early and have piece of mind. Too much invested time and money to try to push oci. Looks like my aftermarket intake could use a cleaning and re-oil.
Code:
DATE SAMPLED DATE RECEIVED DATE REPORTED
01-Apr-13 10-Apr-13 11-Apr-13
OIL ANALYSIS REPORT
UIN 032BExx
2005 Legacy GT 91,669mi
Pennzultra 10w30, 4040miles with wix filter
Metals (ppm)
Iron (Fe) 8
Chromium (Cr)
Lead (Pb) 5
Copper (Cu) 2
Tin (Sn)
Aluminium (Al) 3
Nickel (Ni)
Silver (Ag)
Titanium (Ti)
Vanadium (V)
Contaminants (ppm)
Silicon (Si) 10
Sodium (Na) 9
Potassium (K)
Water (%)
Coolant No
Additives (ppm)
Magnesium (Mg) 3
Calcium (Ca) 2565
Barium (Ba)
Phosphorus (P) 738
Zinc (Zn) 853
Molybdenum (Mo) 57
Boron (B) 232
Physical Tests
Viscosity (cSt 100C) 10.0
Physical / Chemical
Base Number (mgKOH/g) 4.5
Code:
DATE SAMPLED DATE RECEIVED DATE REPORTED
01-Apr-13 10-Apr-13 11-Apr-13
OIL ANALYSIS REPORT
UIN 032BExx
2005 Legacy GT 91,669mi
Pennzultra 10w30, 4040miles with wix filter
Metals (ppm)
Iron (Fe) 8
Chromium (Cr)
Lead (Pb) 5
Copper (Cu) 2
Tin (Sn)
Aluminium (Al) 3
Nickel (Ni)
Silver (Ag)
Titanium (Ti)
Vanadium (V)
Contaminants (ppm)
Silicon (Si) 10
Sodium (Na) 9
Potassium (K)
Water (%)
Coolant No
Additives (ppm)
Magnesium (Mg) 3
Calcium (Ca) 2565
Barium (Ba)
Phosphorus (P) 738
Zinc (Zn) 853
Molybdenum (Mo) 57
Boron (B) 232
Physical Tests
Viscosity (cSt 100C) 10.0
Physical / Chemical
Base Number (mgKOH/g) 4.5
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