Mobil 1 5W-30, 4964 mi, 05 Sentra

[Finklejag]

This doesn't look good. I added a bottle of Regane right after the last OCI. Would that affect the lead numbers?

 

[Al]

I already posted on b15

 

[TooSlick]

You have a small amount of coolant leaking into the oil. This is causing an acidic sludge to form and resulting in the increased bearing wear.

Since this vehicle is under warranty, I'd keep careful records of all your UOA's. You may need them to get warranty work done....

TS

 

[Cutehumor]

These Nissan sentra's 1.8L are coolant leakers. I posted a couple of UOAs and have one in the mail sent to butler. good luck with the dealer shop.

 

[ryansride2017]

Sometimes things just don't make sense. The UOA on my Sentra showed about 17 times the amount of sodium and about the same amount of potassium as this UOA but showed no wear because of the antifreeze leak. Why?
My 2003 Sentra UOA

I now have 135K on my Sentra and gave it a dose of Bar's Leak which significantly slowed antifreeze usage because of the head gasket problem.

 

[Al]

quote:

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Originally posted by ryansride2017:
Sometimes things just don't make sense. The UOA on my Sentra showed about 17 times the amount of sodium and about the same amount of potassium as this UOA but showed no wear because of the antifreeze leak. Why?

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I suspect a bad reading on the Na. There is no way that Fe., Silicon, and Pb. could be that low with an antifreeze leak. I can almost guarantee it.