1qt HPL EC - 4qt PUP oil filter @6k miles

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Jun 27, 2024
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Just did an oil change on my 2007 xterra. It has ~189k on it. Ran 1qt of HPL EC for 6k miles to prepare to switch it fully to hpl premium passenger car oil at Dave's recommendation. I've historically used penzoil platinum high milage and PUP exclusively and changed it at anywhere from 5-12k miles so I wasn't expecting the cleaner to do a lot, I think my engine is pretty clean but I haven't been under the valve covers yet, not doing that till they leak. My commute is 70 miles interstate every day so I'm going to try to push this hpl beyond 15k and see what happens. I'll probably do a uoa at 10k and go from there. Overall though the filter from the previous change looks pretty clean.

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Yeah I would say chances are that your engine is pretty clean using the Pennzoil Ultra/Pennzoil Platinum. I know when I switched from Mobil1 EP to Amsoil SS, I cut open my oil filter halfway through the run and my filter looked similar to yours.
 
I did not see any carbon with 25% EC30 - but similar situation where the engine got Mobil 1 AP 0W20 within OLM limits …
Running VRP now …
 
Just did an oil change on my 2007 xterra. It has ~189k on it. Ran 1qt of HPL EC for 6k miles to prepare to switch it fully to hpl premium passenger car oil at Dave's recommendation. I've historically used penzoil platinum high milage and PUP exclusively and changed it at anywhere from 5-12k miles so I wasn't expecting the cleaner to do a lot, I think my engine is pretty clean but I haven't been under the valve covers yet, not doing that till they leak. My commute is 70 miles interstate every day so I'm going to try to push this hpl beyond 15k and see what happens. I'll probably do a uoa at 10k and go from there. Overall though the filter from the previous change looks pretty clean.

View attachment 240235

View attachment 240236
Which filter is this? just curious.
 
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