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Coupes & Convertibles Mazda RX-8 Mazda RX-8 Gas Mileage Reports
91 messages, Last post on Feb 13, 2009 at 9:37 AM
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Replying to: trispec (Apr 21, 2007 4:11 am)
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Replying to: trispec (Jun 01, 2007 2:11 am) I just came back from a trip to the mountains in the S, over 30mpg on the highway (all top down) and 26-29 mpg driving around the mountains (all top down). I get 24 mpg commuting to work (mostly all top down). My RX-8 with the latest recalls and computer flash gets 14-15 mpg commuting (same route as the S gets 24 mpg) and gets 19 mpg on highway trips - though one time I got 20.5 mpg. And highway driving is mostly set the cruise on 74 or 75 and just ride - so not much room to improve the mileage except to drive slower. So it does not matter if you use the old or new EPA numbers, when driven as intended the 8 suck fuel like a huge v-8 (or worse). So says all the car mag tests and so say the customers who drive (the 6 speed) in a spirited manner. In a recent C&R head to head with the 2007 Ford Mustang Shelby GT, the 2007 Mazda RX-8, the 2007 Nissan 350Z, and the 2008 Audi TT 2.0T guess which car "won" the test? Even though it "guzzles gas like a private jet" ? link to story Note on their 600 mile test the 8 returned the worst mileage at 15mpg - even lower than the 319 hp Shelby. I love the car, like C&D I think it is a "winner", but when driven as designed the MPG just sucks  Dennis |
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Replying to: dwynne (Jun 04, 2007 8:34 am) I don't do much paddle shifting any more though, so that may help keep the RPM's down well below 2000 most of the time. I do regularly rev past 5000 and oil consumption in the city is a quart/1000miles. Thanks for that link. I sure love my RX-8. It still turns heads, especially when four 6' adults exit with all the door open.
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Yeah I agree the RX8 is an amazing ride, just too bad the mpg and lack of torque (no faster than a Nissan Sentra Se-R). I drive a 350Z and normally get 28 mpg at hiway speeds (70-85mph) and about 21 in city driving. And the EPA for my 350Z was 19/25, so obviously they under rated the mpg! And it seems the mpg is overly generous for the RX!
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Replying to: dat2 (Jun 11, 2007 2:42 am) |
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Replying to: dat2 (Jun 11, 2007 2:42 am)
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Replying to: sssfegy (Jul 14, 2007 8:29 am) |
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The Z has more power, the 8 has a better ride and a back seat. I haven't driven a Z, but I'm guessing the 8 feels much more agile due to a lower "polar moment of yaw" as one of the brochures puts it. Basically the engine is further away from the front end of the car, so it is easier to rotate. The fuel economy/power output ratio of the 8 isn't that great, but the rotary engine has other benefits - smaller, lighter weight, etc. Plus you can rev it a lot without worrying about reducing its life, unlike a piston engine. Rotaries are designed to rev, in fact it is good for them.
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Replying to: mdw1000 (Jul 18, 2007 9:20 am) As for revving, there seems to be a quicker and smoother rise right up to the 7500 red line beep. It took at least a year before the full auto mode would reach red line to set off the beeper. It was a huge surprise the day it happened. As for the 350Z's ride, I use to drive a consultant back to his hotel from work here in Boston. He owned a fully tricked out 350Z back in Arizona where he lived. Of my RX-8 AT he was very impressed with the rides ability to handle Boston's horrible streets. He concluded one would never be able to drive a 350Z in Boston without getting a severe back ache. He also said that he'd taken his 350Z on the track and averaged only 6MPG.
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Replying to: trispec (Jul 24, 2007 3:12 am) |
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