Hello all, I have had some oil consumption in my Envoy 5.3 for some time now. I decided to try this oil first, before doing a ring job on the motor. I was planning to change the filter at 500 miles, but between being out of town and the snow, I never got a chance to crawl underneath it and change it out. My initial observation is that there is definitely a hard carbon crust on the filter media. I was able to scrape the surface of the media with a razor and remove that hard carbon crust. In one pic, I folded the media over to show the back side and the difference from the carbined up side to the clean side.
I will keep using this oil and change the filters out at 1000 miles. So far, I believe it is working as I had hoped.
I will keep using this oil and change the filters out at 1000 miles. So far, I believe it is working as I had hoped.