Exhaust system safety — Arkansas Permit Test

Never allow the engine to idle in your garage or an enclosed area without an open window.

Exhaust gas builds up quickly in a closed space, and it can kill people who never smell it coming.

Never allow the engine to idle in your garage or enclosed area without an open window.

Fumes from a leaky exhaust can cause death in a very short time.

A leak can fill the cabin before anyone notices, and the fumes can kill quickly.

Fumes from a leaky exhaust can cause death in a very short time.

In winter it is a good idea to open a window now and then to let fresh air into the cabin, which reduces the risk of toxic exhaust fumes filtering into the moving vehicle.

With the windows shut and the heater on, a small exhaust leak can build up inside the car without anyone noticing.

During the winter it is a good idea to occasionally open a window and allow fresh air to fill the cabin of the vehicle, which will reduce any risk of toxic exhaust fumes filtering into the moving vehicle.

Where should you not let your engine idle unless a window is open?

In a garage or other enclosed area. Exhaust gas builds up quickly in a closed space, and it can kill people who never smell it coming. Arkansas Driver License Study Guide, p.84: “Never allow the engine to idle in your garage or enclosed area without an open window.”