I have looked over similar questions to this but was still confused. It appears that when I use my heater I burn up gas so much faster. It takes my car a very long time to get warm so I keep it on high. Would replacing the thermostat help heat it up faster, so I could keep the fan on low? Thanks.
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The thermostat may be a factor in regards to the heater taking a long time to produce heat for the passenger compartment. One way to tell, is if the temperature gauge take some time to get into the operating range. The thermostat is (usually) not a difficult item to replace; also, when the engine takes a long time to warm up, it will use more fuel than a warm engine…this is where you are seeing the increase in fuel consumption. The fan speed does not have anything to do with the fuel consumption, as there is no belt or anything else to draw power from the engine itself. Replacing the thermostat should fix the problem, although the radiator may need a flushing as well….don’t forget to look at all of the hoses for the radiator and heater connections for signs of wear and needing repalcement
u can try replacing ur thermostat but its probally ur heaters core wich u have to have someone take a look at and leaving ur heater on low or high doesent make much difference as far as gas mileage goes any time u make ur motor work harder it burns more gas
Do you have one of these cars that automatically turns on the air conditioning compressor when you have the heater set to the "defrost" or "Defog" setting? If so, this will make you burn more fuel as that compressor robs quite a bit more engine power than an electric heater fan will.
m’s right, heater has nothing to do with gas mileage.
Do not turn the heater on when warming it up as you’re dispensing the heat, ONLy if it overheats.
If you’re not getting enough heat the heater core may be clogged a bit. Did u flush the system?
Also, consider switching to a thermostat with a higher temp so it opens when the water is hotter and u get hotter air to the heater core and inside the cabin. Ex: some thermostats come in 160, 185, and 195 degrees. Get the 195.