FUEL CONSUMPTION hallo.i have a subaru forester 1999 S/TB. my car has a bigger muffler does it contribute to more fuel consumption?? it goes about 5-6 km per a litre in the city and about 7-8 in high way. secondly my car has a button reding HOLD just beside the Hand break what is this for?? my email is [email protected]

SOURCE: i have a 1997 subaru

check the spark plug or injector or coil

SOURCE: hello,i bought a subaru outback

REPLACE AIR FILTER.CLEAN FUEL INJECTORS,CHECK TIRE PRESSURE.LOW TIRE PRESSURE WILL CAUSE LOT OF FUEL CONSUMPTION.CITY DRIVING WILL BURN LOT MORE GAS,STOPPING VECHICLE THEN GOING WILL CAUSE MORE GAS BURNING, YOU NEED POWER AND FUEL TO GET VECHICLE IN MOTION,BY IT BEING HOT WEATHER, USING AIR CONDITIONING TO KEEP COOL INSIDE WILL CAUSE MORE FUEL CONSUMPTION.