12 Hours of Caterpillar CAT 15 Diesel Engine Idle | Continuous Sleep & White Noise

Buy Us a Coffee -- https://dieselsounds.gumroad.com/coffee Find us on Apple Music - https://dub.sh/KMfhYin Find us on Spotify - https://spti.fi/yNKFPlY An ad-free, uninterrupted MP3 download of this audio is available here: https://gum.co/u/qtnm21pm Settle in with 12 continuous hours of a Caterpillar CAT 15 diesel engine idling at a steady, consistent pace. This recording is designed for overnight use—providing a calm, uninterrupted background sound that many find helpful for sleep, relaxation, or focus. The constant low-frequency engine hum creates a stable white-noise environment without sudden changes, voices, or transitions. Ideal for leaving on all night, whether you’re resting, working, or simply looking for a steady mechanical soundscape. No talking. No music. No interruptions.