After a HPDE I changed my oil and found small particles of metal. I cut open the filter and it was clean.

What could cause metal to gather in the pan and not the filter??
Some back ground. I have a stock DE with 14,000 miles. There is no knocking. Runs great...

Thanks for the help in advance.

 

You sure they were metal? I thought I saw metal in mine but they were microscopic bubbles reflecting light. Send it to blackstone to be sure.

 

Oil analysis performed?

Answers will be there, speculation will be here.

 

Blackstone it is. Ordered their test kit a couple days ago. I'll give an update in a few weeks.

 

Sounds good!

Blackstone sees my oil every change

 

Got my oil analysis back from Blackstone. This is after a HPDE event where I put 200 track miles on my car. All the numbers were good except molybdenum. Molybedenum is 101 parts. What would cause that number to be high??

 

is it an 06? that throws everything off.

 

Well the Molybdenum is a metal. What is used for in the motor, I have know idea. Now I do know it’s involve in intense heat areas. No on my First Blackstone was at 13k miles my Molybdenum was 107. Now at the 17K mark it was 97. I would say this Molybdenum is just something let over from the casting of the block. Also I have 06 RevUp.

 

I have a 2003 with 14,400 miles.

 

Pulled from Wiki...

Molybdenum disulfide (MoS2) is used as a solid lubricant and a high-pressure high-temperature (HPHT) antiwear agent. It forms strong films on metallic surfaces and is a common additive to HPHT greases—in case of a catastrophic grease failure, thin layer of molybdenum prevents contact of the lubricated parts

Probably is a bearing coating on the stock bearings, also is used on piston skirts in the aftermarket, possibly in the OEM but I doubt it.

 

Moly is in the oil - LOL! It's a good thing! If you use Motul, it will be in the hundreds if not thousands....

 

try reading through the oil analysis thread and if you still have a questions I am sure the threads OP would be more than happy to help you. You should also scan your UOA and put it in the thread so he can enter the data into his data base.

https://my350z.com/forum/engine-and-...-and-info.html

 

Glad you are clean. Now I have to ask why you have so little mileage on an 03?

 

I use Motul and my 'moly' reading is 10. Seems like it should be on the components, not in the oil?

 

Unless you have moly coated bearings, which you don't then as stated the moly has to be comming from the oil. Are you using a racing oil?

Only the MOTUL 300V oils are high in moly. The rest of the line is designed for cars with catalytic converters which moly will destroy.

 

The Molybdenum is part of the oil additive package. If you check the first page of the oil analysis sticky there is a breakdown of the most common additives, and there's a comment on Moly in particular further down on the page.

Different blends use varying amounts of different additives in the oil. I could show you several Motul blends, each with a varying degree of Moly in the formulation.

Several of Motul's 8100 series' oils have substantial amounts of moly in them, so I guess it depends on what your definition of "high" is, but the 300 series do use more of the additive. And no, molybdenum additives do not harm, much less destroy, catalytic converters.

Will