This is for my Forester. I used a prepaid Wix analysis kit.
Original fill:
5.0 quarts Pennzoil Platinum 0w-20
0.5 quarts Castrol Edge 0w-30 GC
Added at 5,000 miles into the OCI:
1.0 quarts Castrol Edge 0w-30 GC
I drive with frequent WOT. My commute is 23 miles of back country roads. Here is a good UOA for comparison.
Html:
Oil PP 0W-20 & GC 0w-30
Miles on Oil 7,400
Miles on Car 22,400
Filter Wix 57830
Sample Date 7/7/14
Make Up Oil 1.0 Qt.
Aluminum 7
Chromium 0
Iron 11
Copper 4
Lead 0
Tin 0
Molybdenum 58
Nickel 0
Manganese 0
Silver 0
Titanium 0
Potassium 6
Boron 6
Silicon 13
Sodium 7
Calcium 2227
Magnesium 177
Phosphorus 753
Zinc 905
Barium 0
cSt Viscosity @ 100°C 9.0
Water % 0
TBN 5.0
Original fill:
5.0 quarts Pennzoil Platinum 0w-20
0.5 quarts Castrol Edge 0w-30 GC
Added at 5,000 miles into the OCI:
1.0 quarts Castrol Edge 0w-30 GC
I drive with frequent WOT. My commute is 23 miles of back country roads. Here is a good UOA for comparison.
Html:
Oil PP 0W-20 & GC 0w-30
Miles on Oil 7,400
Miles on Car 22,400
Filter Wix 57830
Sample Date 7/7/14
Make Up Oil 1.0 Qt.
Aluminum 7
Chromium 0
Iron 11
Copper 4
Lead 0
Tin 0
Molybdenum 58
Nickel 0
Manganese 0
Silver 0
Titanium 0
Potassium 6
Boron 6
Silicon 13
Sodium 7
Calcium 2227
Magnesium 177
Phosphorus 753
Zinc 905
Barium 0
cSt Viscosity @ 100°C 9.0
Water % 0
TBN 5.0