I changed my oil yesterday with 6 quarts of 10w40 Castrol Syntex after about 5,500 miles on same oil. 1995 BMW 525i with M50TU 6 cylinder 2.5-liter engine with about 163,000 miles
I had started to notice a light clicking before the change after a 20 second or so warm idle. The noise is slightly more pronounced the longer the idle. In addition, it kind of comes and goes. However when revved it disappears or I just may not hear it.. There is no change in clicking noise after the oil change.
I think it is just a sticky hydraulic lifter. Not much I can do. I have completed three Auto-rx treatments. Any thoughts?
I had started to notice a light clicking before the change after a 20 second or so warm idle. The noise is slightly more pronounced the longer the idle. In addition, it kind of comes and goes. However when revved it disappears or I just may not hear it.. There is no change in clicking noise after the oil change.
I think it is just a sticky hydraulic lifter. Not much I can do. I have completed three Auto-rx treatments. Any thoughts?