No, but it does have a great lubricity than regular diesel so that might account for a little bit, but likely only a very little bit, of reduced clatter. Although each brand of engine is different so different brands may clatter more or less noticably? Cowboydoc uses it on his ranch if I recall correctly. We tried to use it in our truck fleet but found the closest biodiesel was too far away to switch our fleet over and we don't have a central fuel depot on the property.