AC Delco PF-63 - 7.5k miles - cut open

[ABerns]

The following images are of a AC Delco PF-63 taken off a 2011 Chevy Traverse with the 3.6L DI V6. Oil and filter were run for 7.5k miles, which was down to 3% on the OLM. Oil was Amsoil ASL 5w30.

As you can see, the filter seemed to hold up fine - no complaints about it. However, I am bothered by the significant amount of build-up in the can - these pictures are taken after it had drained for 3 days. Any ideas on what this gunk could be? The past filters from this vehicle saw similar OCIs, but the cans had no such particles.

 

[Donald]

Do the brown splotches rub off with your finger touching them? They almost look like rust. Are you getting a used oil analysis? They certainly could have been there from the filter manufacturing process.

 

[skyship]

Looks like a clean filter to me. Even with a new engine there will always be some debris in the filter and the amount in the picture is of no significance.

 

[ABerns]

The particles do come off, but they aren't big grit pieces by any means. I did not get a used oil analysis this time, but will in two more OCIs. The previous used oil analysis came back fine.

 

[229]

As long as it is dexos1 certified you are covered under your warranty. DI engines are harder on the engine oil therefore the new certification.