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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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#49 of 91
Re: Mazda RX8 Owners: MPG-Real World Numbers [geckozoid] by trispec
Jul 29, 2006 (5:34 am)
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Replying to: geckozoid (Jul 28, 2006 11:23 am)

MPG is a stereo typical consumer benchmark. It is meaningless without context. RX-8's are rev happy driving machines. 'Stangs are straight shot torque heavy brute machines.
 
Now lets take both cars to a non-NASCAR race track. Which car gets better millage going around the track. In the hands of a pro driver the 'Stang's MPG drops like a rock down to 5 MPG where the RX-8 gets 7 MPG. The way to drive a 'Stang around the track at it's fastest is much less efficient than the way to drive an RX-8 around the track. Plus the pro drivers would probably choose the RX-8 as they would be able to win more often with it's intelligent balanced drivability over the 'Stangs raw brutishness.
#50 of 91
Re: Mazda RX8 Owners: MPG-Real World Numbers [trispec] by div2
Aug 02, 2006 (9:09 pm)
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Replying to: trispec (Jul 29, 2006 5:34 am)

I've been lurking in this forum because I'm considering picking up a used RX8. I've enjoyed reading your comments on the car. I usually hang out on a few of the BMW boards and over there we frequently get those "My [insert make here] is faster/cheaper/better then a BMW" postings. I'm glad to see we're not alone...
To paraphrase one of my fellow Bimwads, I doubt many RX8 owners lie awake at night wondering if they should have bought a Mustang
#51 of 91
Re: Mazda RX8 Owners: MPG-Real World Numbers [div2] by trispec
Aug 03, 2006 (2:10 am)
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Replying to: div2 (Aug 02, 2006 9:09 pm)

I do enjoy 'Stang roasting when giving an opportunity. The MPG thread was just such.
 
Agreed 'Stang envy is not a problem here. An RX-8 sighted on the road still strikes me as "Wow that looks good, and I'm driving one". Where as the new 'Stangs looks like that '70ties show sans the chrome.
#52 of 91
Re: Mazda RX8 Owners: MPG-Real World Numbers [trispec] by flipper897
Aug 10, 2006 (8:15 pm)
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Replying to: trispec (Aug 03, 2006 2:10 am)

I recently returned from a month-long cross-country trip, about 6800 miles, in my 2005 RX-8 (6-speed).
While I do like the Mustang's looks, I chose the RX-8 because of my prior experiences with the RX-7 (owned a 79, 83 & 86). In 35 years of driving, I have never gotten as much reaction and praise as I have with my little red rocket. I didn't buy it for looks, I bought it because it's fun to drive & makes me feel like a kid again. I now have almost 9000 miles on the car & it's been virtually trouble-free. Also, gas mileage was better than I expected -averaged 23-24 mpg on the highway, with a few tanks at 25 mpg.
 
Mazda needs to advertise the 8 more!!
#53 of 91
Re: Mazda RX8 Owners: MPG-Real World Numbers [flipper897] by murfbear
Aug 14, 2006 (9:45 pm)
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Replying to: flipper897 (Aug 10, 2006 8:15 pm)

I have to agree with Flipper897 Mazda needs to advertise the RX-8 much more often, I think it sells well enough with the current exposer but with just a little more push sales would explode, besides I'm getting tired of the same old Ford Chevy Dodge and Honda pitches. Lets see some RX-8 VS, ?? any model you make the call.
#54 of 91
Long trip on the 8, still bad mileage by dwynne
Sep 24, 2006 (9:14 am)
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I get around 13-15mpg in town in my 05 RX-8 GT w/6 speed. My commute is about 12 miles each way about 1/2 stop and go and 1/2 freeway.
 
I drove a 380 mile round trip yesterday it was almost 100% interstate with only a couple of stops. Speeds were 60mph up to 73mph, depending on which state and if we were in town or not. For the first tank, I got 21.5mpg.
 
For reference, in my 2005 S2000 I get 23-25mph around town and 27-29mpg on a trip - all with the top down.
 
They only good news is that gas has dropped here to under $2.50 per gallon for premium.
 
In the long term RX-8 test update in one of the car magazines, the commented on how expensive the 8 was to run in terms of always adding oil and how thirsty it was at the pump. "This is why no one else makes a rotary engine". The car is nice and fun to drive and the rotary is smooth, but I have owned 345 mph and 394hp (stock) cars that could deliver the same or better mileage and own a car with similar power and redline that gets a TON better.
 
Dennis
#55 of 91
Re: Long trip on the 8, still bad mileage [dwynne] by trispec
Sep 25, 2006 (2:32 am)
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Replying to: dwynne (Sep 24, 2006 9:14 am)

This seems a bit trollish, but I'm gruff'n having just blown down I95 from Portland to Boston in my 2005 RX-8 AT. This time of year, between labor day and the beginning of leaf peeping season, the I95 Portland to Boston run is stunningly fast.
 
I got 23MPG averaging 85MPH.
 
I also believe, the RX-8 far surpasses all the competition. During the year I've own my RX-8 AT, I've driven 16K miles, where 6000 of those miles were highway. Long stretches of highway cruising needs a car to be roomy and comfortable, fun to drive, and capable of carrying the average U.S. family and all their weekend stuff.
#56 of 91
Re: Mazda RX8 Owners: MPG-Real World Numbers [pathstar1] by w9cw
Sep 25, 2006 (4:06 am)
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Replying to: pathstar1 (May 13, 2006 1:46 pm)

I'm not sure when the R100 was imported, but I had a friend who had a NSU Ro80 and it's fuel mileage was quite poor. Of course, Dr. Wankel's rotary design is not known for fuel economy.
 
I bought a new Mazda RX2 in 1972, and loved the car, except for the gas mileage. And, as "pathstar1" says, apex seals were a problem. I loved driving that car, and gas was cheap at the time.
#57 of 91
Re: Long trip on the 8, still bad mileage [trispec] by dwynne
Sep 25, 2006 (4:57 am)
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Replying to: trispec (Sep 25, 2006 2:32 am)

You have about 2x the miles on your 8 than I do - but I have other cars and motorcycles to share the transportation load
 
I just report what I get. Driving around town there are lots of variables - do you redline, do you putt putt, etc. But on a trip where you just set the cruise and drive (straight line boredom) there is not much I could do to make it better or worse. Maybe after more miles are on my car the numbers will pick up.
 
I agree that the car is unique - but that is not 100% a good thing. As I said I got better MPGs in cars with a LOT more horsepower than the 8 - the rotary is just horribly inefficient.
 
Dennis
#58 of 91
Re: Long trip on the 8, still bad mileage [dwynne] by trispec
Sep 25, 2006 (5:31 am)
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Replying to: dwynne (Sep 25, 2006 4:57 am)

My normal Boston commute is for the most part, along a 30 mile round trip of tree lined neighborhoods where speed limits of 35-40MPH predominate and where Boston cops live to catch speeders. So horse power means nothing as it would be completely wasted in my driving environment.
 
What does matter enormously, is having a car that pulls .93Gs through Boston's famous traffic rotary systems and winding cow path road layouts with three passengers. Makes the daily commute quite invigorating.
 
Sure I pay 20% to 30% more for gas, but my passengers would much rather ride in my RX-8 than any other car. They pay me for the priveledge in fact. The car is known as "Therapy car" in my commute cycle.

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