Hey new to the forum here. I have a 07 Suburban LT 5.3L with 160K on it. I am good at getting her in for her scheduled oil changes. I just recently had her in and switched from 5W20 to the high mileage synthetic at our local chevy dealer. It has been about two weeks since I have had the service done. Today my check engine light came on and my oil pressure gage reads 40 at idle then climbs to about 85-90 as I excelerate.
Could the switch of oil be the cuase of this by picking up sluge from the pan and clogging the filter?
Could the switch of oil be the cuase of this by picking up sluge from the pan and clogging the filter?
