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RX8 TRUE Fuel Economy

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Old 06-13-2007, 05:22 PM
  #26  
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yea thats about right for me..
Old 06-13-2007, 05:45 PM
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You would think the 350z would get better than 20mpg average.
Old 06-13-2007, 07:29 PM
  #28  
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sounds about right. when i mix i get 18-19.

i like the new rating, bumps down those damn prius'
Old 06-13-2007, 09:05 PM
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Originally Posted by 4me2
You would think the 350z would get better than 20mpg average.


Why would you think that? The power those motors make isnt free. And the cars are bloated pigs.
Old 06-13-2007, 10:12 PM
  #30  
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I get 12L/100km on average ... which works out to be 19mpg ...

... I have been able to tip 9.7L/100k before which is more like 19.5mpg, if no 20mpg.

Sorry if my calculations are incorrect, I just worked it out in my head.
Old 06-14-2007, 07:05 AM
  #31  
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FINALLY - R.I.P. to all the frustrated MPG wining posts. As if it meant anything - now practically anyone will get the "official government mileage". Yea!!!
Old 06-14-2007, 08:34 AM
  #32  
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Originally Posted by Cromax
I get 12L/100km on average ... which works out to be 19mpg ...

... I have been able to tip 9.7L/100k before which is more like 19.5mpg, if no 20mpg.

Sorry if my calculations are incorrect, I just worked it out in my head.
you can double check here...

http://www.calculateme.com/cGasMilea...100kmtoMPG.htm

9.7L/100Km is about 24mpg.
Old 06-14-2007, 12:52 PM
  #33  
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Cool site I didn't know the RX-8 had a 2 cylinder engine!
2005 Mazda RX-8
Manual (6 speed)
2 Cylinders
1.3 Liters
Premium Gasoline

The page for the MX-5 is dead on though. The New EPA MPG is exactly what I have had so far in the 2007 MX-5 6M: Low of 21, high of 28, average of 24
http://www.fueleconomy.gov/feg/calcu...umn=1&id=21641

Last edited by MazdaMonkey; 06-14-2007 at 12:55 PM.
Old 06-14-2007, 03:32 PM
  #34  
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Is there anything else about this car that can drop...other than the resale value?
OOoooooo BURRRRRRRRRRRRNNNNNNNNN!

there's something i love about this car's faults. cant beat a camaro off the line? ok. crap-*** gas mileage? so what? reliability is ****? thanks for the warning! for every bonehead in a hot-**** "i have the loudest fastest ride EVER!" muscle-car douchebag, we have an 8 owner that knows the limitations of their car, and drives it/loves it REGARDLESS.

seeing "official" numbers makes me feel better, too. I average 16.5ish mpg city/hwy, and when i think im getting STELLAR mileage from a long highway trip, its at 17 and change. i never thought i'd see 20mpg, and uh... now i dont care!
Old 06-14-2007, 04:20 PM
  #35  
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Originally Posted by Endless Rotaries
Found this website. Thought it was neat.

http://www.fueleconomy.gov/feg/calcu...umn=1&id=20621

Rishie

FANTASTIC ! ! !

I HAVE FINALLY GOTTEN THE EPA HIGHWAY ESTIMATE ON MY FAITHFUL "04.

On my last run from Houston to Gulfport, I exercised remarkable (and boring!) restraint, held her to under 75, and measured 23.4 mpg. I was dreading having to slow her down even more on the next trip, but no---

I've finally seen her get the EPA estimate.
Old 06-14-2007, 04:32 PM
  #36  
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Originally Posted by RotrDoc
FANTASTIC ! ! !

I HAVE FINALLY GOTTEN THE EPA HIGHWAY ESTIMATE ON MY FAITHFUL "04.

On my last run from Houston to Gulfport, I exercised remarkable (and boring!) restraint, held her to under 75, and measured 23.4 mpg. I was dreading having to slow her down even more on the next trip, but no---

I've finally seen her get the EPA estimate.
Drove just last week with three other RX-8s from Chicago to Michigan at about 85mph consistently...we all averaged 23-24mpg.
Old 06-14-2007, 07:32 PM
  #37  
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hmm, see I thought the old ratings were correct, as even on winter gas I was getting around 20-21 in mixed hard driving.

Oh well, now everyone will be happy when they get better than the EPA ratings
Old 06-14-2007, 07:41 PM
  #38  
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You all get better mpg than I do so quit bitchin.




Old 06-15-2007, 08:17 PM
  #39  
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LOL, I'm the 2nd one on the list...the FL guy with a lifetime average of 19.2mpg in stop and go driving, while not stuck in traffic that much at all.

Since then, I'm now driving like 70% highway and 30% highway and I'm getting like 21mpg. In my opinion the RX8 driving softly in the city in moderate traffic can hit 19mpg (flat land, and base 6spd) but normally I hit (with a lead foot that grows heavier every year) about 18.8mpg but here is my complaint.

There is NO WAY I've ever even come close to the 24mpg highway, the best I've done is about 21mpg and while I've never been on the highway at 75mph for a full tank I just don't see my 8 getting 24mpg honestly.
Old 06-15-2007, 08:36 PM
  #40  
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Just a finished a tank and got 16.89 MPG.
Old 06-16-2007, 01:46 AM
  #41  
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I seriously think i'm selling my 8

Starting a deep frying Fish and Chips place

Buying TDI Golf/Jetta, Diesel Chevy and going SVO Alternative fuel baby. That's how i'm running into this ****. I just can't stand it anymore.

Replace the RX8 with a LGT Limited and figure out how to make it do E50 or E85, since guys do it on the imprezas.

Rishie
Old 06-23-2007, 10:36 AM
  #42  
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The new numbers bring down the highway a bit too much, but the city is probably closer to realistic.

I'm only getting 13mpg in suburban driving, but I only drive about 6 miles to/from work each day. Getting the car to operating temp must be a big part of that crappy mileage. However, I've gotten 22mpg on the highway doing 75-80mph. I'm sure I could do 24-25mpg if I slowed down to 65mph.

Shift points are also probably a big key in gas mileage. I read in other posts about what gear to use at 25mph, if I'm not trying to pass I'm up shifting quickly and will skip 2 or 3 gears most of the time - 1st, 2nd, 4th or 1st, 2nd, 3rd, 5th and now I'll do 1st, 3rd, 6th.

I wonder if a hybrid version of the RX8 would make sense. The electric motor would help in low-end torque and improve the terrible city gas mileage.
Old 06-24-2007, 02:43 AM
  #43  
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Originally Posted by tiggerlee
You all get better mpg than I do so quit bitchin.

AND THE TRUTH....SHALL SET YOU FREE!!!
Old 06-24-2007, 08:30 AM
  #44  
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I get better than the new EPA estimates in both city and highway. My actual mileage is about halfway between the old and the new estimates.
Old 06-24-2007, 08:56 AM
  #45  
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I don't know how some of you possibly got 23 or 24 miles per gallon, even only on the highway and only using cruise control, but I managed to get 20 mpg on my tank last week. I live a mile from the highway and it was pretty much all highway. Ramathorne is always all highway. But I was so happy about seeing that big 20 I had to call my buddy with a v6 accord coupe. He then he put me in my place with his 24 mpg. Whatever, he drives an black egg.
Old 06-30-2007, 03:40 AM
  #46  
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After more than 100'000 km with the car (daily driving, 25% city, 75 % jammed autobahn) I'd say the average mileage is 19.5 mpg. You can get slightly better results if you really try (I managed 23.5 under above circumstances) and of course much worse (9.5 is possible if you race the car full force).
Old 06-30-2007, 08:24 PM
  #47  
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Your not driving fast enough if you only get 9.5 MPG on the track.
Old 07-03-2007, 11:44 AM
  #48  
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I don't drive track - I drive Autobahn.
Old 07-05-2007, 09:50 PM
  #49  
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Originally Posted by SmokeyTheBalrog
And I posted that this is NOT Rx-8 specific and is INDUSTRY wide. And yes it did and still does seem that you where/are bitching.

Not only bitch, but bitching about things taken out of context.
You forgot this is the biggest cry baby site on the internet.
Old 07-06-2007, 07:17 AM
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you kids play nice in the sandbox.... now now...


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