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

whats normal gas milage

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Old Aug 21, 2005 | 01:23 PM
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From: Humboldt Sask.
whats normal gas milage

85 gsl, whats the normail gas milage, i get under 20
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Old Aug 21, 2005 | 01:26 PM
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Whats "under 20"? I don't know what my car did, but from my reading, I've found that anything between 15 and 20 in the city is expected, even in stock form. But I think around 18 in the city should be good.
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Old Aug 21, 2005 | 03:20 PM
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18 MPG city, 22 Hiway seems to be the norm. I get a bit better myself.
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Old Aug 21, 2005 | 03:33 PM
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If gas mileage were rated in words, the Rx-7's would be "crap". Tune your carb, this helped mine a little.
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Old Aug 21, 2005 | 07:46 PM
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i am getting about 29 mpg in my 79...i have no idea how though...but i am not complaining one bit!!!
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Old Aug 21, 2005 | 09:52 PM
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I get about 12 in the city with my set up, Holley carb and RB exhaust.
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Old Aug 21, 2005 | 09:53 PM
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^^ouch!!
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Old Aug 21, 2005 | 11:51 PM
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Fantasy Gas Mileage

"i am getting about 29 mpg in my 79...i have no idea how though...but i am not complaining one bit!!!"

Well, I have owned a lot of rotaries in the last 25 years, and have a lot of friends who have also. Based on what I know, I think you are going to be really disappointed when you get to the bottom of that hill.
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Old Aug 22, 2005 | 12:18 AM
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20-22MPG around town, depending on how much I hit the hiway to go across town.
I got an average of 25.5MPG on a road trip to DFW earlier this year. Will soon make the trip again, and will certainly be interested in the results.
83 GS
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Old Aug 22, 2005 | 12:21 AM
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Originally Posted by RX-79
i am getting about 29 mpg in my 79...i have no idea how though...but i am not complaining one bit!!!
you got the experimental unit that they accidentally let slip out the door. the agents are on their way to your house right now im sure.

IIRC my 83gsl would get about 15 city and 18 highway and my -se would get around 18-20 city and 22 highway.
its so depressing i dont even keep up anymore
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Old Aug 22, 2005 | 12:37 AM
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I get about 24 on the highway, not sure about city, i think anywhere from 17-20.

Alvin
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Old Aug 22, 2005 | 12:44 AM
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I get about 17-18mpg mixed city/hwy driving with my stock 83 GSL

I could probably get about 20mpg if I could manage to keep my foot outta it and stop the secondaries from opening, but what fun would that be
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Old Aug 22, 2005 | 06:04 AM
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I get about 19 with mine (stock carb, mech secondaries) but I keep my foot in it at all times.
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Old Aug 22, 2005 | 06:12 AM
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From: Don't you wish you knew....
I'm scared to even try and calculate
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Old Oct 30, 2005 | 11:22 PM
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i get 12 mpg in town and 34 on the highway... weird
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Old Oct 30, 2005 | 11:38 PM
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i buy gas daily.
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Old Oct 30, 2005 | 11:46 PM
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about 12mpg city 18 highway. Racing beat exhaust and Holley intake

When the car was stock I got 30 on the highway I miss that
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Old Oct 31, 2005 | 08:30 AM
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It mostly depends on your driving. I can get over 30mpg on the highway--not at high speeds of course.
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Old Oct 31, 2005 | 09:27 AM
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Yeah, 29mpg is possible. BUT, I was only able to achieve that once- a result of driving 55-60mph for a 150mile drive purposely to see how good the car could get. That was all stock- cats/airpump/etc. I was getting passed a lot, and I felt like it took twice as long as it should take to drive that far. This doesn't reflect realistic use though-all highway is not what people do unless they live in the countryside- or making a road trip through many states- in which case a airplane trip would be almost cheaper-a lot faster.
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Old Oct 31, 2005 | 09:35 AM
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well it is another one of these threads lol but any way here are some recent updates on my trip from ATL to Macon and back

Going down there took 1/4 tank. coming back was about 1/3 of a tank or more. Why the difference? Well i did take the car up to 95mph going up hill from 475 75 on the connection there. Traffice was a bit worse. Also going down there I stayed at about 3.5rpm... seem to be ideal for the 83 GS between 3 and 3.5k rpm.. that gets you 65 to 75mph. anything over that it seems to just drink gas. Everything is stock but have a cat on it now. last i tested a mix of Hwy and city driving got me about 22mpg. So if you want good mpg dont drive like a bat out of hell. Don't take off in first gear to 7k rpm and then take 2nd to 7k rpm. Shifting around 3-4k rpm seems to be best from what i have tried. as hard as it is to do... baby it and you get good gas. keep it tooned and you get good gas. port it out, turbo, 4 barrel card, you will not get good gas. just facts from what i have read on boards.
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Old Oct 31, 2005 | 10:15 AM
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Im hitting ~ 17 mpg now that I installed the 2nd gen coil w/ tranisitor. Most of that is my daily commute in traffic with the last 3 miles to home wiiide open...
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Old Oct 31, 2005 | 11:40 AM
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Whats up, maybe im wrong but i get 6 city 9 highway, no Im right unfortunatley. Now you Kno why my other cars a honda civic D15=All Slo/No Go
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Old Oct 31, 2005 | 01:08 PM
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Originally Posted by stilettoman
"i am getting about 29 mpg in my 79...i have no idea how though...but i am not complaining one bit!!!"

Well, I have owned a lot of rotaries in the last 25 years, and have a lot of friends who have also. Based on what I know, I think you are going to be really disappointed when you get to the bottom of that hill.
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Old Oct 31, 2005 | 01:12 PM
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I haven't burned a whole tank in years because of just cranking and tuning and getting my cologne fix without actually going anywhere. And backing it out to wash it while it's running to keep the battery charged. I was getting close to 20 last long road trip with same setup. Probably alot worse in town because I can't keep my foot out of it.
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Old Oct 31, 2005 | 01:12 PM
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i get about 18 city and 27 on highway with my all stock -SE. properly tuned-up, with stock exhaust no less...new filters, plugs wires, cleaned injectors, rotor and cap, etc... this -SE is a trooper
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