2016.5 Mazda CX-5 Touring 73.3k UOA (WIX) - 527 ppm Potassium?

[notreal3212]

Hi All,

Here's the oil analysis at 73.3k miles and it appears that there's coolant found in my oil. Not sure if I agree or disagree as I don't even know how to test for this but if anyone has any advice, please let me know.

 

[PimTac]

This is not the Mazda transmission fluid?

 

[notreal3212]

This is not the Mazda transmission fluid?

Fixed, thank you!

 

[daves87rs]

Leaking in the back of the engine?

 

[PimTac]

Was the oil milky looking? How about your coolant? Have you had to add any?

I think this is where a pressure test or compression check will have to be done. Smarter minds will chime in here on that.

 

[Popsy]

Potassium, increased viscosity and (possibly) highish (all things relative) iron.
Sodium is also at 51 (is there some sodium in that Amsoil oil?), so like other said maybe a pressure test is in order.

 

[notreal3212]

Leaking in the back of the engine?

Leaking in the back of the engine?

I haven't had a chance to take a look at the back/bottom of the engine but that would probably be a smart choice.

 

[notreal3212]

Was the oil milky looking? How about your coolant? Have you had to add any?

I think this is where a pressure test or compression check will have to be done. Smarter minds will chime in here on that.

I didn't see milky looking engine oil last time I did my change and it was pitch black. My coolant is green; did not see anything milky or brown colored. I did add some coolant but mainly to top it off.

 

[notreal3212]

Potassium, increased viscosity and (possibly) highish (all things relative) iron.
Sodium is also at 51 (is there some sodium in that Amsoil oil?), so like other said maybe a pressure test is in order.

I am not sure if the AMSOIL 0W-20 Signature Series is high in sodium but I would definitely be willing to give the pressure test a try or possibly even another oil change at a different lab like Blackstone to confirm if WIX is accurate.