engine knock

engine noise. spun bearing? Hey guys, i have the 2008 2.7L 300LX. I got my oil changed and my engine flushed about 3 weeks ago, now my car has an unbearable ticking noise from the rear left cylinder, I took the valve cover off and i noticed, there was still sludge on the non moving parts, and...

Last week I purchased a 2008 Touring AWD 3.5L with 65,000 miles. I changed the oil and oil type yesterday. The previous owner used to use Valvoline Dura Blend 10W-30, which is a combo of synthetic and regular oil. My local shop put in regular shell oil 10W-30. As soon as we started the car, I...