BLACKSTONE OIL LABS ANALYSIS UPDATE:
Here's what i got back on my last oil change:
MILO: Last we checked, Castrol GTX used sodium in its additive package, so hopefully that explains the
sodium found here. Sodium can also show antifreeze, and since Castrol's sodium typically reads ~150 ppm,
it's possible some of your sodium is from antifreeze. Wear metals look good and potassium is still low, so
we are not immediately concerned and will know more as you build trends. Note silicon, which could be from
an air filtration problem, so check out that system just in case. Suggest resampling at the next oil change for
another look sodium and silicon.
- So, im gonna do a few more samples so we can get some trending for the engine before we can determine what's what.
From what i can tell, that Antifreeze would be coming from a headgasket that lightly seeps Coolant into the oil.. or from some type of hairline crack in the head.
I'll do a few more samples of the oil before go pull the head for a new gasket and a valve job.
Gonna replace the air filter, hope that helps lower Silicon levels in the oil. - that could have also been from a few small vac leaks from rubber caps that wore out and starting leaking..
Cheers,
Milo