That measurement could be taken outside the car with the car running at highway speeds and the engine at normal highway revs. An idling car isn't very loud at all, even one with no muffler (well, it isn't if the car is a 4-cylinder Toyota!), but they are exponentially louder at highway speeds. Also, much of the noise you hear from a car passing by is tire noise and wind noise, not just engine noise.Nice, Oleg, but are you sure about that muffled car value?
What jumps out at me is that a vacuum cleaner is listed at 70, and a muffled car at 90?
I don't know about everybody else, but I think that my cars are quieter than any of my vacuums...
M1A2 tank with the hatches firmly shut and the safety harnesses cinched tight.So, what hearing protection is recommended for the inside of a tornado?