2012 Genesis 3.8L V-6 w/HIGH silver

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Philth

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Can't figure out how to post the sample.

Here's the skinny of what's going on.

Engine has 28k miles on it. Have been using M1 5w30EP since the first change. 7,500 mile intervals w/OEM filter.

Current oil has 5,942 miles on it at time of sample.

Silver was 13

Blackstone seemed alarmed. Shall I poop my pants, knowing that I'm about to spin a bearing?
 
The only thing i know about silver is that it is sometimes used to coat bearing, and if its coming off, then there is some bearing wear coming soon. You might want to find the source of wear to keep it from getting into the lead.

Did the UOA have high silicon? Dirt in the engine can lead to high bearing wear, i found this out personally through a damaged air filter letting dirt into my engine.
 
3c46cb5d-03e1-4f9e-a92a-3a453f2ab8a3-1.jpg
 
Sir, with the spring season coming up, I am reasonably confident that your motor will be better served by running either VWB or MS5K 10W30 for 5K miles. After doing a UOA, if indeed better and acceptable to you (and to Blackstone), run MS5K for 6K, whether you choose to do another UOA or not. This is the course I would take, if I were you. QSAD conventional is good for 5K to 6K OCI also.
 
Says GDI motor, so unless mostly highway driven normal service, quality 10W30 conventional oil of low to mid SAPS (in the foregoing I mentioned three examples) for up to somewhere between 4.5K and 5K. Only after positive UOA, seek to operate for 6K, 6.5K, 7K, 7.5K miles OCI.
 
Thanks. Was planning on switching to Pennzoil Platinum 5w30. Worried about the Vegas heat when wife drives there for good.
 
Originally Posted By: Philth
What is VWB? MS5K?


Valvoline White Bottle.
Officially, V. Premium Conventional. A low SAPS (low ash) oil, and low ash motor oil is highly recommended in BITOG for DI motors.
Lubrizol ZDDP + sodium additive.
One BITOG member runs a Chevy DI (GDI) engined vehicle, and he UOAs show that running at moderate OCIs approximately 5K, acceptable UOAs, could even be called good UOA.

Mobil Super 5000. A low to mid SAPS oil, there's a series of UOAs of a DI Ford F-150 (the Eco Boost) showing that with MS5K, near 10K OCI is doable, if operated under normal service.
ZDDP + sodium and titanium additives. The Ti additive is believed to slow down the rate of oil oxidation. The Na additive is believed to assist ZDDP in wear protection, also to assist Ca additive in detergency, also to slow down the loss of TBN.

More or less equivalent to VWB is the Valvoline NextGen Conventional, also the NAPA conventional. If you don't like 10W30, then you could go 5W30. Or a blend of 5W30 and 10W30.
 
I wouldn't be the least bit alarmed. Furthermore, keep in mind that UOA results are not something the dealer or manufacturer would consider when determining whether or not to consider engine replacement. Unless there is an audible knock or upper engine noise that is deemed abnormal, they will not even pull the oil pan to look for metallic debris.
As long as it is running well, no worries.
 
Originally Posted By: tswm
Originally Posted By: Philth
What is VWB? MS5K?


Valvoline White Bottle.
Officially, V. Premium Conventional. A low SAPS (low ash) oil, and low ash motor oil is highly recommended in BITOG for DI motors.
Lubrizol ZDDP + sodium additive.
One BITOG member runs a Chevy DI (GDI) engined vehicle, and he UOAs show that running at moderate OCIs approximately 5K, acceptable UOAs, could even be called good UOA.

Mobil Super 5000. A low to mid SAPS oil, there's a series of UOAs of a DI Ford F-150 (the Eco Boost) showing that with MS5K, near 10K OCI is doable, if operated under normal service.
ZDDP + sodium and titanium additives. The Ti additive is believed to slow down the rate of oil oxidation. The Na additive is believed to assist ZDDP in wear protection, also to assist Ca additive in detergency, also to slow down the loss of TBN.

More or less equivalent to VWB is the Valvoline NextGen Conventional, also the NAPA conventional. If you don't like 10W30, then you could go 5W30. Or a blend of 5W30 and 10W30.


Thank you for the explanation. Does Pennzoil Platinum, or other like synthetic, have ZDDP in it like the VWB does?

More so, if I drop my OCIs down to 3,750 (severe service intervals per owner's manual), is there ANY advantage to using synthetic at all in this application?
 
I don't know much about this engines construction and there is little info about the main or rod bearing material on the web.
The use of silver on main or road bearing shells would be unusual, most engines today are using solid aluminum bearing shells to replace the old tri metal bearings.
The continued absence of lead in future UOA would confirm the aluminum shells.

Some of the old tri metals had an extra sacrificial layer of moly/ptfe resin but not silver and aluminum use no coating that i am aware of.
Silver is used in needle, ball and roller bearing cages and i suspect this engine probably has a bearing of one of these type in the VVT system, probably in the actuators.

Someone who has rebuilt one would know for sure. What you could do is look at a main and rod bearing, a magnet will tell you right away if its an aluminum bearing.
The silver might be some flash of the cage of a bearing or it may be wearing a little, more than likely this is in the top end.

I don't want to start some sort of a war here but Mobil 1 EP apparently doesn't do well on the 4 ball wear test according to some, i think that it may be relative when it comes to needle, ball and roller bearings.
PM Kestas he is a expert on bearings.

I would go with the PP and see what happens. I am no expert on this engine or UOA interpretation, these are just some early morning ramblings.
 
Iron was 16, aluminum at 6. Not high but makes me think this engine needs a stouter oil. The viscosity was 9.14 and 56 so it sheared a bit. Perhaps non ep m1 or pen platinum.
 
Here is a possibility:

Ask Blackstone to re-run your sample. Sometimes they will do it for free.

The reason I say this is, Silver has a very high "shadow" effect in an ICP. I run an ICP for a living. I'm a chemist.

So, if a sample had high silver, and then Blackstone ran your sample next and your sample had no silver in it, it might appear to have silver in it anyways. Silver and Lead are both "very sticky" in an ICP.

It's a possible explanation.
 
Originally Posted By: Phishin
Here is a possibility:

Ask Blackstone to re-run your sample. Sometimes they will do it for free.

The reason I say this is, Silver has a very high "shadow" effect in an ICP. I run an ICP for a living. I'm a chemist.

So, if a sample had high silver, and then Blackstone ran your sample next and your sample had no silver in it, it might appear to have silver in it anyways. Silver and Lead are both "very sticky" in an ICP.

It's a possible explanation.


Thanks, I've asked them to re-run it. Will let you know what they say.
 
Yes, Pennzoil Platinum and other similar synthetics have ZDDP (Zinc Dialkyl-Dithio-Phosphate) in them. It's an anti-wear, anti-oxidation additive.
 
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