Toyota YZAA1 @4K with HPL VII Euro 5w-30 C&P

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Patrick0525

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Transitioning the 14 Toyota V6 2GR-FE @124.8K to HPL. The goal is do a 10K OCI using HPL VII Euro 5w-30 with an intermediate filter change at 4K to 5K and an UOA. Looking for evidence of carbonization. As a prerequisite I did an earlier 2K OCI using a 1qt of HPL EC30. Below is a 4K YZAA1 filter change and a replacement with a Walmart ST9972. The new filter was prefilled and added of 16oz of HPL 5W-30.
More pics and a C&P later in the week after the filter gets paper towel blotted. Look for a turkey day pic posting.

I did not see any carbon at the bottom of the filter housing. Since new, I have religiously changed the oil at 5K (0w-20: PUP, PU, Idemitsu, Shell truck & gas, TGMO) and did a Fram Ultra at 10K.

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[ Since new, I have religiously changed the oil at 5K (0w-20: PUP, PU, Idemitsu, Shell truck & gas, TGMO) and did a Fram Ultra at 10K.]
 
wwillson said:
Would you be willing to cut the filter media so you can stretch it out and take some pictures? Then you can see for sure if the HPL has removed any deposits.
Click to expand...
Let me ask the wife. I usually destroy the house and end up in the dog house. But I did examine every filter media louvre and collected all the visible carbon with a pick. Close ups are below.
At 1st I thought I would not find anything, however under closer examination…Eureka! Every 3rd/4th louvre there was black solid particles. Still very clean but some scant particles.

HPL is amazing even for a properly maintained 5K synthetic OCI.

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Patrick0525 said:
Let me ask the wife. I usually destroy the house and end up in the dog house. But I did examine every filter media louvre and collected all the visible carbon with a pick. Close ups are below.
At 1st I thought I would not find anything, however under closer examination…Eureka! Every 3rd/4th louvre there was black solid particles. Still very clean but some scant particles.

HPL is amazing even for a properly maintained 5K synthetic OCI.

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Click to expand...
Nice work and great photos. Cleaning is happening.
 
wwillson said:
I waited way too long to change the filter:

https://bobistheoilguy.com/forums/threads/dodge-durango-3-6l-hpl-5w-20-21-079-miles-on-oil.344904/
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LS Jr posted a VRP 5K OCI video on his wife's 180K Toyota and he did not see any black carbon debris in the oil filter. @wwillson and my oil filter are on a HPL diet showed something completely different. Looks like if you use HPL, a 5K filter change is mandatory until it becomes debris free.

LS Jr and I have the same engine. He does a TGMO 10k oil and Toyota filter change. I do a 5K (0w-20: PU, PUP, Idemitsu, Shell truck & gas, TGMO) oil and a 10K Fram Ultra filter change. He has varnish on his dipstick and I do not. UOA results are similar with wear metal @ 2ppm/1K miles. (My wear is actually closer to 1.7 ppm and across 4 labs over 10 yrs)

180K VRP vs TGMO video

Just different oil chemistries at work.
Just sent out the HPL UOA.


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Update with cut filter pics. The filter has been paper towel draining for 18 days- Nov 25. New filters (based on three new filters) have an avg weight of 27g and my filter’s has a weight of 32g. So it has collected 5g of solid dirt. Based upon a YouTube oil filter video using 30 micron Aluminum media, this is within a filter’s dirt holding capacity without going into by-pass mode.

Notice the dark carbon debris collected when I cut the filter open. Debris fell off the filter.

In summary, if u are doing a 1st time 10k HPL OCI, please change ur filter early 4-5K miles on a well-maintain engine.

Maybe microscope pics later.

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Patrick0525 said:
Update with cut filter pics. The filter has been paper towel draining for 18 days- Nov 25. New filters ( based on three new filters) have an avg weight of 27g and my filter’s has a weight of 32g. So it has collected 5g of solid dirt.
Click to expand...
I'd expect the media to look a lot darker if it had picked up 5 grams of mostly carbon. There might still be enough oil in the media to affect its weight. You could soak some new filter media in oil, and then dry it out, to see how much its weight increases.
 
twX said:
I'd expect the media to look a lot darker if it had picked up 5 grams of mostly carbon. There might still be enough oil in the media to affect its weight. You could soak some new filter media in oil, and then dry it out, to see how much its weight increases.
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I used a fresh paper towel to soak up the oil for 18 days. The oil's density is 0.863 g/ml so 5 g is approx 6 ml of oil. A teaspoon is approx 4.9 ml. There is not much more oil left in the filter. Diminishing returns on the level of effort.

The filter has a slight brown tinge but at 8.0X magnification but there is no brown coloration on the media. Maybe absorbed into the individual fibers. I use this microscope for doing 1911 gun work.
 
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FWIW, our Toyota is the only vehicle I've owned where I go to the parts counter for their oil, and pick up a case of 6 qts of Toyota Synthetic 0W-20. About $8.50 qt and the add pack is good. I have to look up the add pack but iirc it has a healthy dose of moly. I just wont take it past 5K OCI's given it's high NOACK
 
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i6pwr said:
FWIW, our Toyota is the only vehicle I've owned where I go to the parts counter for their oil, and pick up a case of 6 qts of Toyota Synthetic 0W-20. About $8.50 qt and the add pack is good. I have to look up the add pack but iirc it has a healthy dose of moly. I just wont take it past 5K OCI's given it's high NOACK
Click to expand...
I have moved beyond 0w-20 and onto to HPL 5w-30. It sounds quite.
 
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