Looking for some feedback on this. It's been about a hundred years since I posted a UOA on here. Oil was in use for almost 9 months (1/11 - 10/11). This is the first OCI that I followed Toyota's 10k recommendation. Blackstone noted that copper and silicon are high. Note that averages I listed are from Blackstone, but for 5k OCI.
Comments from Blackstone: "Your engine is pretty new yet (and it looks like you've been running pretty long oil runs already), so
we're not too concerned about the elevated copper and readings that turned up here. Copper could just be
some residual wear-in stuff that hasn't washed out of the engine yet, and maybe silicon is from factory
sealers. Because other elements look fine, we doubt either element warrants any attention at this point.
Averages are based on 5,200 miles on the oil. The TBN of 1.8 shows some active additive left (1.0 is low).
Check back for improvements next time."
Code:
Miles on oil: 9,925
Miles on unit: 20,039
Sample date: 10/09/11
Make up oil: 0 qts
Unit Averages
Aluminum 5 3
Chromium 0 0
Iron 19 11
Copper 16 6
Lead 0 2
Tin 0 0
Moly 627 78
Nickel 1 0
Manganese 1 1
Silver 0 0
Titanium 0 1
Potassium 0 2
Boron 64 40
Silicon 34 16
Sodium 8 33
Calcium 2381 2252
Magnesium 10 76
Phosp 716 684
Zinc 852 817
Barium 0 0
SUS Visc @210F 53.9
cSt Visc @100C 8.45
Flashpoint 400
Fuel%
Antifreze% 0.0
Water% 0.0
Insolubles% 0.4
TBN 1.8
Comments from Blackstone: "Your engine is pretty new yet (and it looks like you've been running pretty long oil runs already), so
we're not too concerned about the elevated copper and readings that turned up here. Copper could just be
some residual wear-in stuff that hasn't washed out of the engine yet, and maybe silicon is from factory
sealers. Because other elements look fine, we doubt either element warrants any attention at this point.
Averages are based on 5,200 miles on the oil. The TBN of 1.8 shows some active additive left (1.0 is low).
Check back for improvements next time."
Code:
Miles on oil: 9,925
Miles on unit: 20,039
Sample date: 10/09/11
Make up oil: 0 qts
Unit Averages
Aluminum 5 3
Chromium 0 0
Iron 19 11
Copper 16 6
Lead 0 2
Tin 0 0
Moly 627 78
Nickel 1 0
Manganese 1 1
Silver 0 0
Titanium 0 1
Potassium 0 2
Boron 64 40
Silicon 34 16
Sodium 8 33
Calcium 2381 2252
Magnesium 10 76
Phosp 716 684
Zinc 852 817
Barium 0 0
SUS Visc @210F 53.9
cSt Visc @100C 8.45
Flashpoint 400
Fuel%
Antifreze% 0.0
Water% 0.0
Insolubles% 0.4
TBN 1.8
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