This was the car’s third oil change since new, the last being very short because of an upcoming trip.
Two comments:
The oil is Idemistu Zepro 0w-20 with Molybdenum. Haven’t seen this in a UOA before, so thought it would be of interest. And the 625ppm of Moly says the label doesn’t lie.
My primary reason for the UOA was looking for fuel dilution, which is an issue with the other Honda K24W engine in our household. But 2.3% dilution is truly negligible for a DI engine and I’m happy with that. Viscosity is hanging in there, too.
Questions:
Nickel is an unexpected finding. My other K24W showed none in any UOA and this has me puzzled: is nickel even used in Honda K24s? I don’t recall ever hearing nickel was an oil additive. Admittedly 4ppm is not much, but any ideas?
Aluminum is still on the high side, but as the car only had 3,700 miles or so when this fill was added I guess this could still be residue from break in and some additional break-in wear. Given some copper is still showing up, might break-in be the answer?
This sample included quite a few highway miles and the OLM said 70% oil life remaining (60-70%) at the time of sampling. With the TBN of 5.67, this seems about right.
So, while I’m happy with the fuel dilution and other wear metals, any general comments or on nickel and aluminum would be appreciated.
Thanks!
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