1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Gas mileage?

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Old 06-14-03, 04:00 PM
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Gas mileage?

I searched a little but didn't find much.... I just checked my how was my gas mileage today and I came up to 18MPG(some highway,some city driving)

how's that sound?
Old 06-14-03, 04:05 PM
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lucky bastard, im getting like 10mpg
Old 06-14-03, 04:10 PM
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Sounds about dead on. I get consistant 18Mpg, no matter how I drive it.
Hit the track and that drops to somewear around 7mpg.
Old 06-14-03, 05:33 PM
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I used to get 22 regular as clockwork, but now I'm getting about 16. Only thing I can think of is the @!$# shutter Valve. It went out last year (car started ratty and ran rATTy until warm). So I put a plug in the hole in the base of the aircleaner that goes to the $#@%$#$% shutter valve and it runs just fine.

Could it be that stopping the #@!#@$% shutter valve reduced the mileage?

B
Old 06-14-03, 05:42 PM
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how many liters(yes yes LITERS I live in Canada) does a '79 tank have? Because I put 43 liters today and my needle was all the way at the bottom. I do know that my needle is fucked, but I wanna get an idea of how many more km's I can do before my car will die on me.
Old 06-14-03, 11:08 PM
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Correct me if I'm wrong, but I believe we have a 60L tank...

Jon
Old 06-14-03, 11:55 PM
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my haynes says it holds about 55L....

that seems huge though...

my Honda Prelude holds $25 of gas @ 74.9 cents per litre, making it a 35L gas tank....

55L seems big to me, but whatever, just means you can drive as far as my prelude in your RX-7
Old 06-15-03, 12:06 AM
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The '79 model has a 55 liter tank, or 14.5 US gallons, two less than the later '81 and up FB. My gauge reads empty on about 40 liters as well. :shrug: I get about 15-16 mpg in basically pure city driving. That means I can get 210 miles from the 55 liter tank. My car is originally from Texas, so it reads in miles. Real pain in the ***.

I really haven't been on a highway run with this car yet, so I couldn't really say what the mileage would be, but I imagine that I would get ~25 mpg on the highway.
Old 06-15-03, 12:11 AM
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Well I put 14.5 gallons in my car this morning and the gas light was just coming on. Pretty sure I have a 16 gallon fuel tank.
Old 06-15-03, 01:02 PM
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I followed my gas mileage for about 4 months and it averages about 18.1 mpg. As low as 16 and as high as 19. That's daily driving considering I sit in rush hour traffic to and from work all day. Open highway is about 26 with all the power crap the GSL has.

Oddly though, I discovered after about two months of monitoring my fuel mileage, that one of my ignitors was bad and the dist had been rigged to run off of only one. After I fixed it, my mileage didn't change at all.
Old 06-15-03, 01:35 PM
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Pam sucks gas as though through a large straw when city driving, but on the highway she's an amazingly efficient cruiser
Old 06-15-03, 04:05 PM
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Originally posted by Manntis
Pam sucks gas as though through a large straw when city driving, but on the highway she's an amazingly efficient cruiser
just like my car... I guess me and Pam were meant to be together
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