Reading oil samples
12-25-2019, (Subject: Reading oil samples ) 
Post: #1
Reading oil samples
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What are the numbers I need to pay attention to?

Bottom row was from February, top row was from November.

Thanks


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12-25-2019, (Subject: Reading oil samples ) 
Post: #2
RE: Reading oil samples
the main one of them all is always the iron (Fe) number.

Take the mileage of the oil , in your case, 20,000 miles, then divide it by 1000.

20,000 / 1000 = 20

This number (20)...

If your iron is higher than your (mileage/1000), then you likely have excessive wear somewhere. if it is less, then your oil is doing a decent job.

Your iron shows 16. This is less than 20 ... that is a good sign for having 20,000+ miles on the oil.


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 Thanks given by: DDlighttruck , DSTdriver , JMBT
12-25-2019, (Subject: Reading oil samples ) 
Post: #3
RE: Reading oil samples
(12-25-2019 )Rawze Wrote:  the main one of them all is always the iron (Fe) number.

Take the mileage of the oil , in your case, 20,000 miles, then divide it by 1000.

20,000 / 1000 = 20

This number (20)...

If your iron is higher than your (mileage/1000), then you likely have excessive wear somewhere. if it is less, then your oil is doing a decent job.

Your iron shows 16. This is less than 20 ... that is a good sign.
Which one is soot?

I guess resample next service and then compare again?


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12-28-2019, (Subject: Reading oil samples ) 
Post: #4
RE: Reading oil samples
(12-25-2019 )DDlighttruck Wrote:  
(12-25-2019 )Rawze Wrote:  the main one of them all is always the iron (Fe) number.

Take the mileage of the oil , in your case, 20,000 miles, then divide it by 1000.

20,000 / 1000 = 20

This number (20)...

If your iron is higher than your (mileage/1000), then you likely have excessive wear somewhere. if it is less, then your oil is doing a decent job.

Your iron shows 16. This is less than 20 ... that is a good sign.
Which one is soot?

I guess resample next service and then compare again?

ST = 44, was 36 last time.
This lab uses a particle count number, not a percentage like other labs.
My 2013 Western Star always read in the 40’s, my 2016 Cascadia reads in the teens..
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 Thanks given by: DDlighttruck
12-28-2019, (Subject: Reading oil samples ) 
Post: #5
RE: Reading oil samples
(12-28-2019 )uncleal13 Wrote:  
(12-25-2019 )DDlighttruck Wrote:  
(12-25-2019 )Rawze Wrote:  the main one of them all is always the iron (Fe) number.

Take the mileage of the oil , in your case, 20,000 miles, then divide it by 1000.

20,000 / 1000 = 20

This number (20)...

If your iron is higher than your (mileage/1000), then you likely have excessive wear somewhere. if it is less, then your oil is doing a decent job.

Your iron shows 16. This is less than 20 ... that is a good sign.
Which one is soot?

I guess resample next service and then compare again?

ST = 44, was 36 last time.
This lab uses a particle count number, not a percentage like other labs.
My 2013 Western Star always read in the 40’s, my 2016 Cascadia reads in the teens..
Thanks!
I’ll resample and see what the new numbers are


User's Signature: I have no idea what I’m doing and probably need supervising
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12-28-2019, (Subject: Reading oil samples ) 
Post: #6
RE: Reading oil samples
Soot will also increase the vi index in the oil. When I get back to the shop I'll post a couple of Detroit 60 and u can see. We even run kleenoil bypass filters to try and keep condensation low so the tan (total acid number) stays low
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 Thanks given by: DDlighttruck




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