HPL Euro PCMO with VII 5w-30 2014 Venza 4K

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Jul 23, 2014
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2014 Toyota Venza 2GR-FE V6 port injection

Previously did the HPL EC30 20% ratio preparation no UOA submitted.

Sample #2 is the VOA, other BITOG VOA have a near zero ppm of Mo and 500+ ppm of B. The lab re-tested and the Mo is around 100+ ppm. Dave from HPL did an UOA on my batch date code and it came out to be near zero. It remains a mystery.

Sample #3 is a 4K sample taken from the oil filter housing since the filter was changed to do a 10K OCI.

Results:
Other BITOG report a VOA oxidation: 20 Nitration: 8 My UOA is 37 and 14
What does this change in oxidation and nitration mean?

It did shear down from 12.2 to 11.0
The TBN dropped from 9.72 to 6.17
B dropped from 531 ppm to 253 ppm.
Wear metals(Subtraction from VOA): Fe- 4ppm, Al- 2 ppm, Cu- 1 ppm.
Calculated wear metal rate: 1.75 ppm/ 1k mi

Can I do to 10k OCI based on the remaining TBN?
Posting the oil filter later this weekend
Any comments on the data?


Other BITOG VOA

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Wear rates typically drop as the OCI matures; this is very common in most engines.
I believe 10k miles is certainly doable. If you're uncomfortable with that, try 7.5k first, then 10k if all looks good.
Also, taking a sample from the filter housing may or may not affect the ppm data; that's not a typical place to take the sample from.
 
Wear rates typically drop as the OCI matures; this is very common in most engines.
I believe 10k miles is certainly doable. If you're uncomfortable with that, try 7.5k first, then 10k if all looks good.
Also, taking a sample from the filter housing may or may not affect the ppm data; that's not a typical place to take the sample from.
I used the Toyota filter housing’s drain valve to start a flow before collecting a sample.
 
I used the Toyota filter housing’s drain valve to start a flow before collecting a sample.
After removing the filter housing drain valve cap, a drain tool is inserted to empty the oil from the filter housing. The uoa sample was collected from the oil filter housing instead of the typical oil pan drain plug since the 4K filter was being replaced prior to completing the planned 10k oil change interval and uoa. Only 16oz of oil was added.

Upon removing the oil filter, a visual inspection of the internal bottom showed no unusual carbonization debris except for what was collected on the filter.


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