[Solved] Chrome(12) in oil test
06 Nissan Armada 170K miles,original owner,passenger side cat has been replaced at 150K and secondary cleaned.
No engine fault codes.
170K oil test showed 12 for chrome ,highlighted by testing facility-all else good.
Should I be worried?
It indicates possible piston ring or valve wear. However you need to interpret that in relation to other metals found and need more than one test to see a pattern.