2013 Suburban LTZ 74,000 miles
Here's the results from Blackstone Labs: "It looks like this engine may have developed a problem. Aluminum shows excess piston and/or bearing wear and chrome is from rings. Iron shows excess steel wear. Piston scuffing is a possibility, but it could be a bearing issue too. Poor valve train wear could also be responsible for some of the metal. How's the engine running? Any unusual ticking or knocking sounds? Check back in 4-5000 miles."
Aluminum shows 13 ppm, average is 4. Iron shows 104 ppm, average is 18. Chromium shows 3 ppm, average is 1.
Answers are--no unusual sounds. Oil pressure steady at 40 psi (with cold weather starts at 60). Nothing to indicate any mechanical problems.
I'm the second owner (bought at 30,000) and oil has always been changed by local dealer or owner. Have been running Mobil 1 and Mobil filter since end of maintenance plan. Oil always changed by readout and always around 10% remaining.
Is there any way to help extend engine operational life, given this report? What's next? Lottery ticket? Go Fund Me? Marvel Mystery Oil?
Any information or guidance would be most appreciated.
Here's the results from Blackstone Labs: "It looks like this engine may have developed a problem. Aluminum shows excess piston and/or bearing wear and chrome is from rings. Iron shows excess steel wear. Piston scuffing is a possibility, but it could be a bearing issue too. Poor valve train wear could also be responsible for some of the metal. How's the engine running? Any unusual ticking or knocking sounds? Check back in 4-5000 miles."
Aluminum shows 13 ppm, average is 4. Iron shows 104 ppm, average is 18. Chromium shows 3 ppm, average is 1.
Answers are--no unusual sounds. Oil pressure steady at 40 psi (with cold weather starts at 60). Nothing to indicate any mechanical problems.
I'm the second owner (bought at 30,000) and oil has always been changed by local dealer or owner. Have been running Mobil 1 and Mobil filter since end of maintenance plan. Oil always changed by readout and always around 10% remaining.
Is there any way to help extend engine operational life, given this report? What's next? Lottery ticket? Go Fund Me? Marvel Mystery Oil?
Any information or guidance would be most appreciated.