Meowloud

16 - 17 mpg
All city and redlined often. Also less than 1100 miles (mileage improves as the car 'breaks-in further).

o_town_racer

Anywhere from 17 to 23....if fuel economy is your priority you might want to check out the Honda Civic hybrid. Just think about all the fun you'll have in THAT car!

RX8-U-UP

My car is right at 10,000 miles. 7500 miles have been 90% around town, and I have averaged 15 to 17 MPG with very spirited driving. Recently took my first road trip 2500 mile round trip from Florida to NYC, and I got 21 to 24 MPG.

Senseny

About 16 to 18 mpg. Yeah thats a little disappointing, but trust me. The car isn't a disappointment.

DJ Freon

18.6 mpg and climbing (I keep a very detailed log). Started at 16.8 mpg on delivery, and it just keeps on getting better. I hope it never stops!

willhave8

Do you know how to use Excel? Make yourself a simple model with how many miles you drive a year, average target MPG and est. average gas price and define for yourself how much money it costs you per year for this MPG question. For example, if you drive 15,000 miles per year with $2/gal gas; the annual cost delta of 15MPG vs 20MPG is $500. 20MPG vs 25MPG is $300.

Is that enough of a cost impact to make your decision? If so, don't buy the car. It wasn't for 99% of the folks on this board.

revkev

After about 1,000 miles on the engine, my gas mileage started going up. Now with 5500, it is about 17-19 mixed and about 22-24 straight highway.

TwoZooms

I'm at just under 20 mpg under mixed driving conditions. I'm not gentle with the car, but I don't redline at every shift, either. My mpg has gone up steadily over the last 1,000 miles or so.

mattydelbloque

22 MPG

RX8Bliss

go get a civic hybird. learn how to use a search button. its spelled s-e-a-r-c-h and is located on this magical thing called your m-o-n-i-t-o-r.

Speed_D

1 MPG

rotary_it_up

15-18 mpg

1,000,000 smiles per gallon

Hou-TX-RX-8

17 Mixed driving. I wouldn't buy a Sports car for Fuel economy. If you can't afford the gas then you can't afford the car.. Same for insurance.

Roaddemon

Because this car runs well on regular, gas costs will be on par with other sprtdscars in it's class. If you want fuel economy your looking in all the wrong places. What you need is a low power 4 banger that will get you from point A to point B with no joy.

Riccio

With 2500+ miles, my MPG has improved to about 19-20.

I have also switched to 87 octane - no perceived difference in performance, and less fouling of the tailpipes, although I still clean them (with wheel cleaner) weekly.

This MPG thing, while a bit tiresome here at the site, has become somewhat of a game for me. Sometimes, I'll pick a tank that I really try to maximize MPG - shift below 3700, get into 6th gear for crusing ASAP and for as long as possible.

Other times, I'll pick a tank where I just go for it - who cares what MPG I get.

Have noticed less than 2-3 mpg difference over all - so - I mostly do "go for it" tanks.

If you are looking for MPG - why not check out the Miata?

rotarygod

I went to the Houston Auto Show this week and looked at the average car's gas mileage. I am taking into account what cars are the most on the road. Here in Texas, everyone and their redneck drives trucks and SUV's. I also looked at many other (non truck based) cars including BMW, Mercedes, Audi, Saab, Chevy, Ford, etc... What I found is that there is an overwhelming majority that average about 18/24 mpg. That is right on par with an RX-8. Yes there are cars that get higher. There are cars that get lower too. I just don't see everyone else on the road make a big deal about their cars getting this mileage. Everyone knows what their car is rated at when they buy it. This is regardless of what type of vehicle is being purchased. Yes there are cars such as the LS1 based Chevy's that have much more power and get really good mileage in relation to the RX-8. There are also cars that are much less powerful with worse gas mileage.

If we all bought cars solely based on gas mileage, we'd all have Civic's or hybrids. If we all bought cars based on power, we'd be driving Viper's or other high power cars. Luckily we have the freedom to drive the cars that suit us the best and make us the most happy. This is why there are so many different cars on the market. If you base your choice off of only one variable, look elsewhere.

ibfubar2000

constant 20-23 mpg. no mods, no racing, just normal everyday driving. though the very first 1,000 mile or so i was getting about 15-18mpg until the engine broke in.

Ajax

4 tanks thru it now and the last tank was 17.8 mpg, 50/50 city/highway.

Rotary Nut

Please read my thread on this subject!

Squidward

That's a very educated way of looking at it.. Let the numbers speak for themselves. Should put things well into perspective.

Look at it this way---if 500 bucks is going to throw you over your "limit" maybe you shouldn't be buying a $30k+ car in the first place....

wakeech

i'll reiterate the point from the first page:

antman_x

wait a few years till they get the hydrogen RX-8.

Lufa

14-16 daily commute

22+ road trips on the highway

zooomx2

The gas mileage is not that great but $1.70 is cheap compared to WI. $2.00 per gallon and going up!