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Full Tank mileage/ at warning light 16 gal.

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Old 02-04-2006, 10:08 AM
  #41  
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Get your car check for codes.
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Old 02-04-2006, 11:47 AM
  #42  
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a common problem is a bad knock sensor, which doesn't trip the CEL so you'd never know unless you checked for codes.
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Old 02-04-2006, 11:54 AM
  #43  
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Originally Posted by seanish4042
i beg to differ. for one the EPA estimate is 20mpg on a 95, which i understand is a conservative estimate, driving like an old fart.

ppl say they get 25 mpgs city, which i find very very hard to believe.

im usually at 20, +/- 2.
I've been getting roughly 18-19 in the city lately, and I have nothing wrong with the car (and yes, I've checked for ghost codes.) The combination of almost straight city driving and it being winter (increased use of the heater) will reduce your gas mileage.
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Old 02-04-2006, 06:37 PM
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How does the heater affect mileage? B/C I know that AC does, but I don't know how or why about the heater?
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Old 02-04-2006, 07:21 PM
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The seat heaters, defroster (which uses the AC system to dry the air), and rear window defroster use energy that could bring down fuel economy.

The heater runs on hot engine coolant, which is there whether the heater core is flowing or not. Heat not pulled off by the heater would get removed in the radiator regardless. So the heater itself is essentially free.

Dave
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Old 02-05-2006, 08:24 AM
  #46  
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Originally Posted by dgeesaman
The seat heaters, defroster (which uses the AC system to dry the air), and rear window defroster use energy that could bring down fuel economy.

The heater runs on hot engine coolant, which is there whether the heater core is flowing or not. Heat not pulled off by the heater would get removed in the radiator regardless. So the heater itself is essentially free.

Dave
I did not know the details behind it. However, I did notice the drop in mileage because I have to use the defroster quite a bit. I stand corrected on the explanation though.
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Old 02-05-2006, 08:47 AM
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Also, winter gas has a lot of addictives so your car would get less mileage.
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