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Does Valve Train Noise Increase When Synthetic Motor Oil Is Used?
 
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Question:
Does Valve Train Noise Increase When Synthetic Motor Oil Is Used?
I notice that with synthetic oil I have more valve train noise. I switched back to conventional for a change and the noise was indeed reduced. Is it fair to attribute this change to synthetics vs conventionals?
-- Robert Young, Long Beach, MS
Answer:
If you are comparing the same viscosity, then we would not expect additional noise in the valve train when using a synthetic product.
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