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Old 10-09-2016, 02:10 PM   #7 (permalink)
MobilOne
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I ran this 0-30 oil for about 1100 miles, thinking that maybe the noises would quiet down. They did not quiet down, so out with the 0-30 and back in with the 10-40. All the noises went away.

So I would say, what does the engine tell you? Is it using oil? Does it rattle more with lower viscosity oil? And there was a reason that 15-40 was used. Although that reason could have been that the oil change place was just out of the of the 30 weight oil.
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