1999 Subaru Legacy Owner's Manual - Page 238

Starting and operating SUBARU models equipped with the Full-Time AWD feature should be tested on a four-wheel drive dynamometer (State I/M Program may elect to use a "double two-wheel dynamometer" arrangement). Under NO circumstances should any SUBARU Full-Time AWD equipped vehicle be modified for I/M testing. This prohibition includes, but is not limited to: (1) jacking the rear wheels off the ground, (2) driveshaft disconnection, and/or (3) usage of the FWD fuse in the engine compartment. This fuse is for Full-Time AWD diagnostic service purposes only. Engine exhaust gas (Carbon monoxide) D Never inhale engine exhaust gas. Engine exhaust gas contains carbon monoxide, a colorless and odorless gas which is dangerous, or even lethal, if inhaled. D Always properly maintain the engine exhaust system to prevent engine exhaust gas from entering the vehicle. D Never run the engine in a closed space, such as a garage, except for the brief time needed to drive the vehicle in or out of it. D Avoid remaining in a parked vehicle for a lengthy time while the engine is running. If that is unavoidable, then use the ventilation fan to force fresh air into the vehicle. D Always keep the front ventilator inlet grille free from snow, leaves or other obstructions to ensure that the ventilation system always works properly. D If at any time you suspect that exhaust fumes are entering the vehicle, have the problem checked and corrected as soon as possible. If you must drive under these conditions, drive only with all windows fully open. D Keep the trunk lid or rear gate closed while driving to prevent exhaust gas from entering the vehicle. NOTE Due to the expansion and contraction of the metals used in the manufacture of the exhaust system, you may hear a crackling sound coming from - CONTINUED - WARNING 7-7