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Mazda RX-8 Gas Mileage Reports

91 messages,  Last post on Feb 13, 2009 at 9:37 AM

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What is this discussion about? Mazda RX-8, Fuel Efficiency (MPG)


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#9 of 91
MPG by gambit_rx8
Aug 25, 2005 (11:24 am)
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at about 7500 i'm gettin 21 or so with 50/50 driving
#10 of 91
Re: MPG [gambit_rx8] by dwynne
Aug 25, 2005 (6:23 pm)
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Replying to: gambit_rx8 (Aug 25, 2005 11:24 am)

I have a little over 1,200 miles now and I am getting 14-15mpg commuting to work. It is about 15 miles each way with about 1/2 stop and go and part 45-55mph. I tried a couple of tanks of mid-grade Chevron with no (apparent) ill effects on performance, but not increase in fuel economy - but it did cost a little less to fill up.
 
Mine is a 6mt w/GT.
 
Dennis
#11 of 91
My 2nd MPG report by mba2dna
Nov 02, 2005 (12:21 am)
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It's 4000KM now, last tank was 14.2L/100KM, that is around 20mpg. 1/3 high way.
#12 of 91
highway mileage on well broken in rx8 by tomatnavy
Nov 03, 2005 (3:51 pm)
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After 12000 miles of commuting to and from work I finally took a 1000 mile road trip. I drove up to san francisco using 5th gear as my final one.On this segment I averaged 19-20mpg. Very little difference from what I get commuting[18-19mpg].But I got stuck in LA traffic some.For the return trip I used 6th gear as the final drive--here I averaged 20-21.5mpg. Not much difference considering this segment is with the wind.
#13 of 91
highway mileage by rx8red1
Nov 03, 2005 (7:12 pm)
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I just got my rx8 4 weeks ago with 12k miles now i have 15k miles and i get about 210-250 miles to a full tank
#14 of 91
Re: Charlotte NC 20+K miles, ave mpg 17 city/22 hwy [flatpick] by flatpick
Nov 07, 2005 (6:42 pm)
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Replying to: flatpick (Jun 13, 2005 2:30 pm)

Purchased Oct 2003
Velocity Red 6MT All Options but spare tire.
Daily Drive of approx 24 miles (4 X 8 short jaunts)
10/2003 - 5/2004 15-17mpg
6/2004 - 12/2004 16-17 mpg
1/2005 - current 17-18 mpg
hwy trips of 100 miles or more 20-22
 
Don't think it'll get any better....
#15 of 91
Paddle shifting vs. Full Auto on the RX-8 AT 4 sp. by trispec
Nov 17, 2005 (3:07 am)
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Replying to: flatpick (Nov 07, 2005 6:42 pm)

After 3500 miles it appears the Paddle shifting vs Full Auto about 10% less efficient, but the 10% loss probably is because I keep the RPMs between 2500 and 3500 when Paddling. Full Auto constantly seeks to drop the RPMs to the minimum 1600 RPM.
 
Paddling vs Full Auto on the fun level depends. Having to watch the RPMs to shift can get tiresome in stop and go traffic, but if the road is clear, Paddle shifting is the only way to drive.
#16 of 91
Re: Paddle shifting vs. Full Auto on the RX-8 AT 4 sp. [trispec] by dwynne
Nov 17, 2005 (6:21 am)
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Replying to: trispec (Nov 17, 2005 3:07 am)

Paddle shifting is the only way to drive
 
Shifting with a clutch is the only way to drive
 
Plus you get the added HP and higher revs in the 8 - and with a VooDoo shift knob the shortest, tightest manual tranny I have ever used - and that includes both of my S2000s.
 
Now if I had to crawl in traffic, I might feel different....
 
Still getting 13-15mpg commuting about 25 miles round trip each day, but driving the car in the manner for which it was designed
 
Dennis
#17 of 91
Re: Paddle shifting vs. Full Auto on the RX-8 AT 4 sp. [dwynne] by trispec
Nov 17, 2005 (9:41 am)
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Replying to: dwynne (Nov 17, 2005 6:21 am)

Drove sticks for decades, even after moving to Boston. Had to give'm up when my knee, angle and leg just couldn't take the stop'n'go crap any more. Also my wife wanted to start driving in Boston and she would not not drive a stick in the city.
 
Paddle shifting is quite fun though. You know that's how real racers shift, Indy and Le mans types at least. It's just the NASCAR folk who force the manual standard stick and clutch to remain in use. Professional drag racers went fully automatic years ago.
 
Stick and clutch vs Paddles shifters is like carburetor vs fuel injection I think. At first everyone complains about loss of power and added complexity, but eventually the efficiency of the later over the former wins out.
 
OTOH, when I want to just cruise around as easy as possible, full automatic is real nice too.
#18 of 91
Re: Paddle shifting vs. Full Auto on the RX-8 AT 4 sp. [trispec] by dwynne
Nov 17, 2005 (10:09 am)
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Replying to: trispec (Nov 17, 2005 9:41 am)

Years ago I flew into Boston a few times and rented a car and TRIED to drive it. Man - traffic on the freeway stopped for no reason (other than volume) in the middle of the day. I too, would abandon stick in such a city
 
The new 6 speed auto would be more attractive, but I still can't get around the lack of revs and ponies with the 8's version of the auto-box. Would I really miss it, don't know - but I would KNOW I was missing it
 
The 8 (and the S2000) is a true joy to drive with a stick - just a great transmission and 8k-9k redline. I wish you lived where you could have one too.
 
The good news is having an auto does not seem to cost anything at the pump - either way we get dismal numbers.
 
Dennis

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