Quote:
Originally Posted by Wired86
Got my BRZ's oil changed at the dealership the other day after having finished the engine break-in. I noticed today that there seems to be a significant reduction in engine noise. And maybe a loss of power? That doesn't make any sense for an oil change to have done that does it? I tried with windows up and windows down, all with the AC and radio off. I got it all the way to almost redline and even then the engine doesn't sound as throaty as it did before. Am I just imagining this or could there be an explanation? Also it is significantly warmer today than any other day that I've had this car. Almost 70f today wheras it didn't break 45 any other day since I've had it.
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Its normal for an engine to be quieter (mechanical engine noise) after an oil change.