JonnyTahoe
Full Access Member
I had a noticeable leak after switching to Mobil 1 High Mileage. I drained it out after 1000 mi. my 5.3 has 280,000 miles. I also had oil pressure issues as well that's why I decided to give that oil a try.
2007 Denali cold knock low oil pressure at idle whe warm
- Thread starter Kdog
- Start date
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