Amsoil 15W40 13000 kilometers Feb 15- June 01

[D-Roc]

Here is the results from my latest UOA. Iron is high again. THis is my second time with synthetic and the second time iron is high. Mileage-13000 km's (about 8000 miles), mostly city driven, Blackstone Labs UOA.
Aluminum 3
Chromium 1
Iron 49
Copper 3
Lead 2
Tin 4
Molybdenum 6
Nickel 1
Manganese 1
Silver 1
Titanium 0
Potassium 5
Boron 4
Silicon 4
Sodium 3
Calcium 3460
Magnesium 10
Phosphorus 1026
Zinc 1297
Barium 0

SUS viscosity 69.1, (should be between 68-80)

So, this is my second UOA with HIGH IRON- you could probably find my last UOA from a few months back. Esso XD3 0W40 was used.
What does it look like the problem is? Two consecutive UOA's with high Iron. Same driving conditions, same mileage. Do I need to drop my interval, or change my oil? ANybody have any ideas?

 

[wjdell]

Depending on your previous count 49 for 8k may not ba as bad as it may seem. What is the average count for this engine. What is the total miles - a new engine will normally show higher than average counts. How are you drawing your sample. How often do you run your engine to red line. Do you allow your engine to idle allot. You could drop your interval and then go back up. That would reduce the inherited number count.

 

[Pablo]

What about the other numbers? Solids? Fuel? etc?

Contacting Terry may be wise.

Here's your previous UOA: UOA

 

[D-Roc]

I did contact Terry. Will see what is going on. Thanks.

 

[D-Roc]

Quote:

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What about the other numbers? Solids? Fuel? etc?

Contacting Terry may be wise.

Here's your previous UOA: UOA

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Insolubles were 0.4
Water 0
A/F 0
Fuel Flashpoint 445
SUS VIS 69.1

 

[Shup1]

D-Roc,

My CTD also had high Iron (32 w/ 3324 miles on Rotella T), I also had higher silicon (16 / most believe it was the k&n) and high potassium (20 / no explination from Blackstone)

 

[D-Roc]

Quote:

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D-Roc,

My CTD also had high Iron (32 w/ 3324 miles on Rotella T), I also had higher silicon (16 / most believe it was the k&n) and high potassium (20 / no explination from Blackstone)

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Did you get it sorted out, or is it still showing high wear?