Quote:
Originally Posted by 240Joe
Yes, it's called the placebo effect.
google it.
240Joe
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As a matter of fact, hydraulic lifters in nearly-worn-out cars become noisy and clattery as the oil gets thick and dirty and can't lubricate as well.
When you put fresh oil in, those lifters stop being starved for oil, and they do indeed sound smoother and quieter than they did when they were wearing themselves out on the other parts that they knock against instead of simply using the lubricating oil to preserve themselves.