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: The steady rumble helps quiet "racing thoughts" or overactive brains that struggle to focus in total silence.

💡 : If you find this specific engine too "clattery," look for recordings of V6 or V8 diesel engines , which offer a smoother, deeper "thrum" with less mechanical tapping. Knocking noise at idle when warm - TDIClub Forums : The steady rumble helps quiet "racing thoughts"

: Many use these videos as a "virtual cabin" experience, imagining they are parked in a safe, warm space during a rainy or snowy night. which offer a smoother

Listening to heavy machinery at idle can trigger and other cognitive benefits: : The steady rumble helps quiet "racing thoughts"