Can an upper cylinder lubricant (UCL) such as lucas or redline fuel additive reduce injector noise?
I have what I believe is a random and ocassional injector clicking noise at warm/hot idle. It often happens after idling after 30 seconds or so.
Could also be lifter leakdown. Car is a 6 cylinder BMW overhead cam M50Tu engine with 163,000 miles. Liftrs are not adjustble.
I have what I believe is a random and ocassional injector clicking noise at warm/hot idle. It often happens after idling after 30 seconds or so.
Could also be lifter leakdown. Car is a 6 cylinder BMW overhead cam M50Tu engine with 163,000 miles. Liftrs are not adjustble.
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