2008 Suburban with 5.3, 161K. Changed oil in November and used AC Delco PF48 filter and Napa 5W-30 full synthetic. Have about 1800 miles on the oil change at this point.
Late this week, I noticed somewhat lower oil pressure on the gauge and more fluctuation than usual. Maybe a little slower to build pressure on cold startup (in 45 degree garage), but really noticed it running about 15 PSI lower throughout my commute. High PSI wasn't as high and low PSI was lower than normal. Never alarming...
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Late this week, I noticed somewhat lower oil pressure on the gauge and more fluctuation than usual. Maybe a little slower to build pressure on cold startup (in 45 degree garage), but really noticed it running about 15 PSI lower throughout my commute. High PSI wasn't as high and low PSI was lower than normal. Never alarming...
Read more