Paul: You can see the difference between this oil and the German Castrol you were using in the additives (moly, boron, and everything from calcium on down the list). Either oil will work well for you. Wear increased a little in this sample because you ran this oil a little longer. By and large, though, your Ecotec is making much less metal than most of the cars you pass on the highway. The TBN read 3.7, still active additive left. Insolubles (oil oxidation due to heat and use) were quite low at 0.1%, showing excellent oil filtration. Great engine! You could run the oil longer.
OIL: Castrol Syntec 5w30
Oil Added: 0 quarts
Oil Sump: 5.5 quarts
Oil Filter: STP Cartridge filter 9018r
Air Filter: K&N Air filter
Mi/Hr on oil: 7,051
Mi/Hr on Unit: 51,811
Date: 7/18/06
Aluminum: 2 (2)
Chromium: 0 (0)
Iron: 3 (12)
Copper: 2 (2)
Lead: 0 (1)
Tin: 0 (1)
Moly: 93 (54)
Nickel: 0 (0)
Manganese: 0 (0)
Silver: 0 (0)
Titanium: 0 (0)
Potassium: 0 (2)
Boron: 30 (16)
Silicon: 3 (5)
Sodium: 1 (4)
Calcium: 3070 (2206)
Magnesium: 16 (170)
Phosphorus: 659 (764)
Zinc: 797 (883)
Barium: 0 (0)
Visc at 210F - 59.2 (57-63)
Flashpoint F - 390 (greater than 365)
Fuel - less than .5 (less than 2.0)
Antifreeze - 0
Water - 0
Insolubles - .1 (less than .6)
To view picture (jpeg):
Oil Results
Edit: Sorry the above picture is small - can't figure out why or where to post for free.
OIL: Castrol Syntec 5w30
Oil Added: 0 quarts
Oil Sump: 5.5 quarts
Oil Filter: STP Cartridge filter 9018r
Air Filter: K&N Air filter
Mi/Hr on oil: 7,051
Mi/Hr on Unit: 51,811
Date: 7/18/06
Aluminum: 2 (2)
Chromium: 0 (0)
Iron: 3 (12)
Copper: 2 (2)
Lead: 0 (1)
Tin: 0 (1)
Moly: 93 (54)
Nickel: 0 (0)
Manganese: 0 (0)
Silver: 0 (0)
Titanium: 0 (0)
Potassium: 0 (2)
Boron: 30 (16)
Silicon: 3 (5)
Sodium: 1 (4)
Calcium: 3070 (2206)
Magnesium: 16 (170)
Phosphorus: 659 (764)
Zinc: 797 (883)
Barium: 0 (0)
Visc at 210F - 59.2 (57-63)
Flashpoint F - 390 (greater than 365)
Fuel - less than .5 (less than 2.0)
Antifreeze - 0
Water - 0
Insolubles - .1 (less than .6)
To view picture (jpeg):
Oil Results
Edit: Sorry the above picture is small - can't figure out why or where to post for free.