Since its started to get cold Ive started noticing my engine runs noticeably louder. I checked my oil today when I got to work and found that i had a little too much oil (I added an extra quart over the weekend because it appeared to need it). I will drain off some of the oil, but could the extra oil or perhaps the 10w-30 viscosity be making run a little louder in this cold?

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1983 300SD White with Grey interior