I just broke 1000miles in my 8 and on this last tank, I got a whopping 31mpg. And surprisingly enough 40% of the driving was done in NJ Turnpike traffic.

So what makes me so special?
I don't know. These are my variables.

1) 93 octane Shell Gas
2) The other 60% of driving that wasn't in traffic on the Turnpike was done cruising at 60-80 mph
3) I don't have a pussy foot if I recall right I hit the redline 8 times in 2nd and 3 times in 3rd on this tank.
4) Shifts are at 5000-7000 normally
5) 50% of the driving was done in rain
6) I have gotten 17mpg 19mpg 20mpg and 22mpg previously not in that order.

That’s about all I can think of feel free to ask me any questions.

On a side note while on the NJ Turnpike I saw another 8, we were both hauling ass 80mph+. He was in the "Cars Only" lanes I was in the "Cars and Trucks" anyone from here?

I get my best gas mileage going over 80- my husband managed to get almost 165 miles with the gas gauge still 1 notch above half-way this weekend, and that was cruising about 85 the entire way. Maybe your car just really likes you?

I do touch her a lot, I slept in her when she first came home. And i tell her i love her every now and then.

how many miles on the tank before refill?

285.3 Miles and 9.12 Gallons went into the tank.

Comes out to 31.282mpg

Man, that's freaky. Encouraging, but freaky.

Are you sure the tank topped off when you filled up? Maybe the fillpipe backed up and the nozzle tripped before the tank was full. This sounds like one of those things that seems too good to be true, therefore...

NJ is full service and yes he topped it off and i doubt i would have been cheated more then a gallon if that had happened.

I'm goin' with freaky. Post your next fill-up levels. If it wasn't totally filled at the station then the next mileage should be equally abysmal. Of course, I am hoping that that was your honest mileage. Glad that you like the car so much!

Haze

Originally posted by PoLaK
I do touch her a lot, I slept in her when she first came home. And i tell her i love her every now and then.

I wanted to sleep in her the first night my gf and I brought ours home...but I couldn't bear the thought that I might drool in my sleep :o

wait so you drove it 285.3 miles and then filled her up without depleting the tank?

I was worried as hell thought my gas gauge was broken.

Now that I crunched some numbers this almost seems impossible, theoretically I could have gotten 490 miles out of one tank.

Originally posted by PoLaK
I saw another 8, we were both hauling ass 80mph+.

I bet it's some ECU feature that improves fuel efficiency while cruising side by side with another 8!! :p

Damn, in that case, anyone else on this board with an 8 in Santa Barbara?

Originally posted by Haze
I'm goin' with freaky. Post your next fill-up levels. If it wasn't totally filled at the station then the next mileage should be equally abysmal. Of course, I am hoping that that was your honest mileage. Glad that you like the car so much!

Haze

I agree. Polok, post the mileage from your very next tank. that should confirm the results.

PolaK,

I assume that when you left the gas station your gas gage red full. But what was the reading on your gas gage when you drove in before filling up?

That's really good Polak but I doubt I would get 31 if I ran at 70mph on cruise control and drove non-stop for 5 hours.... :( My best ever was 23.5mpg and that was like 90% highway driving.

PoLaK

My theory of your 31 mpg is that because of the rotary design, higher RPM = better gas milage. The rotary design has an inherant positive inertia component. So as you increase RPM you need less fuel burn to maintain engine momentum. Where as with the DOHC system increased RPM = worse gas milage because there is a negative inertia component. And more fuel must be expended to maintain the high RPM.

Conversely, because of the positive inertia component of rotary engines maintaining a lower RPM would cause you to expend more fuel. IE: lower RPM = bad fuel economy.

I'm curious to hear about your latest non-pussy-foot results.

Huh?
That was some kind of joke right? :confused:

Geeaz..Istill get 17-18 no matter what I do....Maybe he is just really really thin..;)

I think you are full of BS or you made a massive mistake in your calculations!!

235/31 = 7.5L/100KM.

The Toyota Echo 5-Speed is rated at 7.5L/100km

Originally posted by Captain_Ron
I think you are full of BS or you made a massive mistake in your calculations!!




I agree

PoLaK,

Do you have any friends that may be fooling around and putting gas in your car just to drive you crazy?

1 I am not full of BS you can trust my word as MOD on this board.

2 no I don't think they would put gas in my car, but I have a funny story about turkey basters and that.

It was 2 am we were out of gas and did not have enough to make it to the nearest station assuming it was still open. So were like ok hummmmmm and we see a turkey baster placed conveniently on a trashcan at the friends house in which we were visiting. We look at each other were both thinking the same thing. So here we are 2 am running around the neighborhood with a turkey baster opening peoples gas tanks seeing if any where shallow enough to siphon some out. No luck, until we find a 69 vett modified (side exhaust etc..), and it finally worked, we made about 15 trips from the vett back to our car until we had enough gas.

Originally posted by DocTorCold
PoLaK

because of the rotary design, higher RPM = better gas milage. ... IE: lower RPM = bad fuel economy.



i think this kinda makes sense...
but can n e one back this?
does n e one have more information on this or a site that talks about this so i can use it on my parents and tell them "driving fast is actually saving them money"
thanx
jeff

Originally posted by s2je77
i think this kinda makes sense...
but can n e one back this?
does n e one have more information on this or a site that talks about this so i can use it on my parents and tell them "driving fast is actually saving them money"

Good luck and I don't think the parents are gonna buy it regardless of your argument.

o...
i already have one...
it's sitting in the garage rite now...

but everytime i red line it... my mom starts nagging...
so if i can prove this as a fact... then maybe i can shut her up for a little while!

but thanx!
jeff

I don't mean buy the car, I mean buy the argument. Moms are like that...

Whatever happened here? PoLaK, did you find an explanation for the 31 mpg?

Polak

Smoking the green weed will make a man hallucinate .

And don't take the brown acid! :p

Polak.

I can only confirm that via normal highway/city mix of driving I get about 17 mpg.

However, on majority HIGH-SPEED runs, confirming what Elara said, I get around 23 mpg, cruising at 85 mph+. These were two runs at 85-90 mph for about 90 miles total. If I trust the ticks on my gas gauge, I burned less than 4 gallons, whereas I would have done about half the tank at "normal" speeds.

That is the highest I've ever gotten. My mileage has gone down with oxygenated gas, now. Errr...

Originally posted by huhsler
]If I trust the ticks on my gas gauge, I burned less than 4 gallons, whereas I would have done about half the tank at "normal" speeds.

You can't trust the gas gauge for calculating gas mileage.

Even from the standpoint of experience?

After 50+ gas-ups at various levels, I think I can gauge what's left in the tank down to +/- 1 gallon or less.

From that standpoint, I'll amend my statement and say, if it's reasonably accurate.

Due to Snow I’ve only put on 400 miles since I posted this tread. I've tanked up twice during those 400, I was going to get another tank, just to be sure, b4 I announced the dismal news.

Though not as horrible as most people tanks I have yet to approach the magical 31 I was on. First tank was a mix of city/highway got 22mpg. And last tank was traveling to the airport to pickup my sister. The Road (turnpike) and speeds were almost identical to last time, if not a little bit faster. Sadly I only got 24mpg, I do believe I got 31mpg but I doubt it will ever happen again :(

Edit: Just because im Polish, and 16. Doesn't mean I rely on hallucinates to feel happy (I have an 8 after all). As for alcohol thats a different story.

Polak

At 16 if you are not hallucinating it could be that your testerone levels are on overdrive .
A good cure for lowering your testorone levels is drink plenty of fresh water and get lots of good pussy.ha ha ha

michael

Well,
Whenever I go fast 100+mph my fuel economy sucks... Regular driving gives me 17 to 21 mpg (70-90mph mostly highway, lots of redlining). My opinion faster you go worse fuel economy. Sounds reasonable too.

I think I will try driving around for a while in just 2nd gear to see if that works. Also for some of you with the 6 speed M/T like me don't forget that we get more air at higher rpm's. That is why we have the extra ports... Someone might look into this and see if we start running leaner at higher rpm's.

OMG...YOU ARE ONLY 16!!!!...WTF!!!

I tried to get my parents to buy me a 300ZX TT when I was 16 but they laughed...I did get an Acura Integra GSR though...schwing...well ,schwing, after I put thousands of dollars and hours tuning it....so in the end I guess I got a >$30,000 car when i was 16...but not until I was around 21..wait i'm confusing myself...so did I or didn't I .....i gotta go now...

Well, normal piston engines' efficiencies generall rise linearly, then fall off sharply past a certain RPM.

However, I've never seen an efficiency curve for a rotary before. The HP / torque curves fall off more gently than a piston.

I'll have to see if I can get my hands on some Wankel charts...

Back to college...sigh...

Polak with that mileage, your not 16, your my friends Grandpa!

on my last tank I got 22.5mpg
that was about 200 miles highway (65-75mph) and about 90 miles city

thats cool getting 31 MPG...some of you find it hard to believe.. anythings possible... my friend had a 2001 Dodge Viper GTS at 17 years old ... wrecked it now got a 04 Sc430 ... lol ... crazy... lucky

I'm on tank 12 and I still get almost exactly 200 miles per tank and it always takes approx 14 gallons to fill it.

That is a little over 14 MPG, for the mathematically-challenged.

Makes no difference how I drive and believe me, I've done it all.;)

Hm... my very first tank yielded exactly 19 mpg and I am approaching the second fillup - I think this time it will be at least as good or maybe better :)
(crossing fingers)

Originally posted by Maniac
That is a little over 14 MPG, for the mathematically-challenged.

Makes no difference how I drive and believe me, I've done it all.;)

I'm with Maniac. I have tried every tip I could find in this forum, and no matter what I did I get 16.5. So I gave up trying to save gas, drive like a maniac (no pun intended), still get 16.5 and have a lot more fun.

There is one thing that did change mileage, namely a drive to LA. My only road trip outside SD county. Then I got 21 mpg. So if you follow that thread on statistical analysis, I really pay attention to how much people drive on the freeway, and stop 'n go don't count.

Polak, lay off the Zubrowka...

:D

I'm constantly getting 15-16 MPG...I started off around 19-20 when I first bought it in August...i'm at 5500 miles now...looking into the ECU reflash...maybe i'll get some relief...

but i didn't buy the car for MPG...even though I sorely wish it were better....at least until 92 Octane goes back to $0.89 a gallon....YEH RIGHT!!!

I'm with the majority on the board as well...no matter how I drive the car I get barely above 200 miles per tank. I just don't see how one car can pull out 31 mpg when just about everyone on the board is getting between 14 and 21. I know what it is!!! Mazda messed up and put a Mazda 6 engine (4 cyl) in your car!! :-)

Seriously though, it's anomaly I'm not ready to believe...until someone like Canzoomer comes out with some fuel mapping consumption chip! Yeah, little far fetched...but is nice to think about!

My first tank also yielded exactly 19 MPG... mostly highway driving, but with some nasty stop and go action near the front and rear ends of the commute. Second tank appears to be on par with the first based on an unscientific eyeballing of the guage. Still breaking in the engine, so I suppose I'm driving a bit like a grandma, but I'm encouraged so far.

I'm hopeful that when the engine is fully broken in and under optimal conditions, 24 MPGs might be possible on extended highway runs at relatively low speed (under 70). Not much fun in that though...

This is a revelation,
I've been driving my beautiful rx8 for almost 5000 miles. I usually get 18 mpg. I broke 20 twice getting 21.3 and 20.7 driving on highway at 55-65mph. Super fast driving would yield 16-17mpg. But i tried something different today. I drove my car on highway in this range 75-85mph and I am getting excellent gas mileage. Cannot be for sure yet but after 70 miles my gauge hand dropped just about 3 dots instead of a quarter tank. Now I am at 250 and still have a quarter of tank... looks promising. Maybe they're right about that moment of inertia or whatever it is...
Thanks

Polak,
Can you list your MPG on your next few tanks?

I pretty much get around 18-20 mpg and that is mostly highway driving.....

I get an average 17mpg on my 8. but occasionally i do get a few 23mpg when i did most of my driving on the turnpike. hmmm .... maybe its the turnpike that makes the diff??

These aberrations happen. My Expedition, which gets 12 mpg on average, has reached 20 mpg on highway drives when I have a tail wind. But, on the same highway, with no wind I get 17.5 mpg, and with a headwind, just 15 mpg.

There are too many unknown factors to judge. Polak mentioned rain. Maybe the car likes high humidity. I recall racing days in the 80's where we used water injectors. Maybe Polak read the wrong trip gauge (e.g. Trip B vs. Trip A). Maybe the gas nozzle shut off prematurely, as just 1 gallon short would mean 3 mpg less (28.19 which is still great). Maybe it was a non-stop trip which eliminates cold starts. Maybe Polak drove all down hill. Maybe, he had a great tail wind. Or, just maybe, it was a combination of factors, none of which were 100% true all the time, that created this aberration.

Good for you... PoLak.

Polak,
Something does not make sense. In order to drive in NJ you need to be 17. Maybe your confusing your age of 16 being your MPG.

Yea but at 16 i have a permit, (license in 4 months), I can drive with anyone over 21 with 3 years diving experience.

don't know about u but the kid in Polak's avatar looks about 12. Perhaps it's his lil brother? sorry dude, just kidding ;-)

I Just got my car last week so I haven't had a chance to measure accurately, though my first tankful, I got 250 miles in constant stop and go city traffic, not that much worse than my 2003 EXV6 Accord!

Come on Polak, you forgot to reset the trip meter after your previous journey didn't you? Which explains why you have got twice the mpg of everyone else in the US (and the UK too).

The only other possibilities are you were towed for half the distance, or there is one hell of a down hill section!

Cheers
---Dave

Originally posted by PoLaK
Due to Snow I’ve only put on 400 miles since I posted this tread. I've tanked up twice during those 400, I was going to get another tank, just to be sure, b4 I announced the dismal news.

Though not as horrible as most people tanks I have yet to approach the magical 31 I was on. First tank was a mix of city/highway got 22mpg. And last tank was traveling to the airport to pickup my sister. The Road (turnpike) and speeds were almost identical to last time, if not a little bit faster. Sadly I only got 24mpg, I do believe I got 31mpg but I doubt it will ever happen again :(

Edit: Just because im Polish, and 16. Doesn't mean I rely on hallucinates to feel happy (I have an 8 after all). As for alcohol thats a different story.


Uh the legal driving age in NJ is 17.

Hmmm i smell something tooo.

dude.... its not complicated im 16 i can drive with any1 over 21 with 3 years driving experience. Which includes my neighbor, my old sister, my parents..... etc... no fishyness the car is mine and i am the only one who drives it.

OK ... I get 20.5 MPG (UK that is) and I've hardly had a chance to welly the beast yet. That equates to 17.07 US MPG.

This 31 MPG stuff is a total load of BS

Actually I think Polak made an honest mistake. What occurred to me is that if he accidentally had the instrument cluster set to metric rather than English the trip odometer would read the kilometers traveled instead of the miles traveled. Instant 60% increase in the numbers if you don't know it happened. That would be 19 mpg instead of 31 mpg. That fits in with what most folks are reporting.

Guys, honestly I made no mistake honest or otherwise. Other then the pump cutting off early which is highly unlikely and I have no control over since NJ is full-service. Elara has gotten 28mpg going 85mph over a long distance as well 31 isn't so far away from that.

I'll be traveling another 100 miles on Christmas ill tank up then see how this tank turned out.

Originally posted by PoLaK
Guys, honestly .... Polak, what did you get on the Math portion of the SAT's.. just kidding.. Still don't believe it though. :D

I filled up my very first tank at 201 mpg...just picked that number since it would be easy calculate mpg...actually tried to stop at 200 but gas station was a mile away.

I filled in 10.449 gallons which comes out to 19.24 mpg. I live in Hawaii so you can't go very fast here otherwise you'll fall of the land and fall into the ocean.

I've been short shifting and haven't revved the motor over 4000 rpms, usually shifting around 2500 except a few times where I needed a little more speed to get on the freeway.

I expected worse so I'm happy with 19 mpg :)

I Got 20mpg last tank guys, 80-90% City driving.

187.3miles
9.3 Gallons back into the tank.

Hm, 31 mpg? No way. There's dozens of reviews on the web with people all reporting the usual 15 liters / 100 Km. I'm not saying you didn't see the boardcomputer report something, but 31 mpg is a mistake, weather it's calculations, boardcomputer or whatever. SImple logic applies :)

Btw: how does one get to be born in 1987 and own an rx8?

hardwork.

Edit: Acutally yes all my co-workers are 26 to 48. They get paid a whole sh*tload more than i do tho :(.

You have a job for a 40 year old? Maybe I can move up to a 911 in a few years working for you :p

I know you have the new muffler bearing install kit plus you were using that new fuel from Italy!

No disrespect....just good fun!!!
I once thought I got 35 mpg in my Rover, but it was all that wine.

Kind regards,
Doug
Las Vegas

Hard work? I got a high paid IT job that still doesn't allow me to go rx8 at 31 (esp. not with its fuel consumption :) ). I can't imagine any job nearby that would have given me 35'000 USD (what an rx-8 is about around here) at 18. Not even remotly, even if I'd give up all holidays etc. What the heck is your job? I guess I work in the wrong area. Can only guess you live with parents and have no costs of living/rent/insurance or won the lottery .. sigh.

This has been beaten to death. I make 600-800 a month Max, I have no expenses other than the car, and parents paid for everything else which allowed me to save for a year and 5 months put down 18k financing the rest.

Edit: I'm 16 who else would i live with!?

That'd explain it. How's financing in the US? Getting these car-maker supported interest rates through 'car-banks' or similar as I saw in germany .. 0.9% interest or even 0. Too bad this doesn't exist where I live :/

A bit more on topic, the rx8's a wonderful car, but the fuel usage gives me the creeps. It's on par with the worst consumption on most sport cars (apart from maybe extremes like ferraris etc). This is a real issue here, as we do not have the insanely low prices of fuel in the US, it's 3 times higher here.

Maybe I'll do something insane and still get one soon, anyway :)

I have 3.9% not great not bad. $373 a month.

As far as Fuel goes people make it out to be more then it really is.
For example:

Let’s assume 2 cars with 2 drivers.
Both drivers drive the average of 10,000 miles a year.

Car A gets 22mpg
Car B gets 28mpg

In reality the difference between the 2 cars to maintain a year will be in the neighborhood of 300-400 dollars. Not that big of a deal if you buy the car that you really love. MPG is something imposed on people who lived during the 70's oil crisis IMHO.

PoLaK you're sounding too reasonable for a 16 year old LOL. Besides you were weren't even alive during the 70s oil crisis. I can still remember going to the gas station w/ my dad back then. Cars ending w/ even numbers can go one day, cars ending w/ odd numbers go another day.

Still better than any domestic or my import SUV that we also hold dear to our hearts and love here in the land of the free!!

Polak you do sound on top of your game for your age.

Kind regards,
Doug
Las Vegas

Originally posted by i3man
Besides you were weren't even alive during the 70s oil crisis. I can still remember going to the gas station w/ my dad back then. Cars ending w/ even numbers can go one day, cars ending w/ odd numbers go another day.

Yea I still know it happened and as I said that it was my opinion, more like a hypothesis really.

Just thought I'd stick my nose in here. :)

I don't own an RX-8, but rotaries have always had wierd thing going on with speed and fuel consumption. The comment made earlier about inertia of engine internals is true (as i understand it). This is because of the fact that the rotating components in a rotary are the eccentric shaft and rotors, which have rotational and rotation+orbit movements, respectively. Compare this with a boinger which has a crank(rotational), con rods(linear+orbit), and pistons(linear). Additionally there's the valvetrain which has cams(rotational), lifters/pushrods(linear, OHV engines), rockers(tilting/oscillating, OHV and some OHC engines), and valves(linear), to list major components (and ignoring springs). None of the components of a rotary ever come to a complete stop, but the boingers have several components (rods, pistons, lifters/pushrods, rockers, valves) which during some point of the engine cycle (or at least a component of their movement) must come to a complete stop and reverse direction. This is what was meant by positive and negative inertia. Also, the drivetrain on a piston engine must be driven by the crank, which means there are also belts, chains or gears in the equation as well.

Basically, the losses in a rotary increase at a lesser rate with RPM than a boinger. There are also many other factors (of course), most notably ECU tuning. Which I suspect, (due to emissions tuning, last minute changes, new model etc....) is a little f***ed up. :D


There, I'm tired, ignore any dumb mistakes I made.


EDIT: Oh yeah, i was going to mention this but forgot. The 3rd gen RX-7 supposedly got 11mpg at 120mph in stock trim. What would a boinger be getting at that speed I suppose.....:D

Hey I3man....

What did you do if your plate ended in a letter? lol

I have to agree w/ pol about the MPG cost issue.

The bigger issue for me is convienience. (I probably spelled that wrong... I'm spell check dependant...) Gas is about 15-20 cents cheaper if I drive about 10-15 mins down I-287 than it is in town. Meaning, it irks me when I don't have time to buy gas out of town and know I'm throwing money away. For me, making a tank last longer means going and gasing up maybe every 4-6 days ('94 Integra) as opposed to 2-4. I have a feeling I'm going to have to gas up every 1.5-3 days in the 8 w/ my 1.5hr commute. (Thank God it's only when college is out....)

Originally posted by CypherNinja
Oh yeah, i was going to mention this but forgot. The 3rd gen RX-7 supposedly got 11mpg at 120mph in stock trim. What would a boinger be getting at that speed I suppose.....:D

If my Civic could hit 120 mph I bet it would double that! It gets 35 mpg at an average speed of 80 mph.

Originally posted by PoLaK
dude.... its not complicated im 16 i can drive with any1 over 21 with 3 years driving experience. Which includes my neighbor, my old sister, my parents..... etc... no fishyness the car is mine and i am the only one who drives it.

legal driving age in NJ is 17? wow, so you got a rx-8 before you even got a license? lucky guy. It must suck not being able to drive the rx-8 on your own. But once you hit 17, you'll be able to really drive the car!

Originally posted by Rx8Past
legal driving age in NJ is 17? wow, so you got a rx-8 before you even got a license? lucky guy. It must suck not being able to drive the rx-8 on your own. But once you hit 17, you'll be able to really drive the car!

polak rocks!!

I don't think he actually owns the car.. you have to be 18 to title in your name, and the finance rate seems way too low for his age! I'll bet the parents ROCK and helped him out a lot!

So far, are you still seeing the same mileage? That's rocks! I used to get about 10 mpg, and with the descreening I'm hitting about 13 mpg now! Is it because of the descreening? Who knows, and who cares at this point. Drive it like you stole it and deal with paying for more gas ;)

Syntrix, you do drive it like you stole it. 10 to 13 mpg? I'm aware of a racing outfit that is getting around 8 mpg and are working to improve that number. Mind you ,they are at 9 grand constantly. I'm assuming you are there whenever humanly possible (as the road conditions allow)

Originally posted by PoLaK
Guys, honestly I made no mistake honest or otherwise. Other then the pump cutting off early which is highly unlikely and I have no control over since NJ is full-service. Elara has gotten 28mpg going 85mph over a long distance as well 31 isn't so far away from that. Good news, Polak. It was just a thought, but since you've done it twice now, all I can say is: "How can I do this?" You must be living right!

Originally posted by bobclevenger
Good news, Polak. It was just a thought, but since you've done it twice now, all I can say is: "How can I do this?" You must be living right!

where did i say i did it twice, i said Elara the forum member got 28 and that was near 31........

Oops, looks like my week for screw-ups. :-)
I thought you had named your RX-8 "Elara" and meant that you had done 28. My bad.

I get about 14mpg even on the highway. How can some people be getting 28/31 and others 14? wtf

Hey just an FYI this looks like a really good tank I'm on i've done 60 miles and im only about 2 markers down on the gas gauge. When im rdy to fill up ill take pictures of the gauge and trip meter to show people that this is indeed my really mileage.

Posting from a friend of the families house right now.

Originally posted by CERAMICSEAL
Syntrix, you do drive it like you stole it. 10 to 13 mpg? I'm aware of a racing outfit that is getting around 8 mpg and are working to improve that number. Mind you ,they are at 9 grand constantly. I'm assuming you are there whenever humanly possible (as the road conditions allow)

Let's just say that if there is a soft code counter for a DTC for rev limter exceeded. That code is definately stored in my ecu ;)

I could try to get max fuel economy, but I would just go insane. This car is just way too much fun!!

Whoa there, before anyone else blames stuff on me- the best I got was just under 26mpg, and it was for only about half a tank.

I'm currently averaging around 17-18mpg, but then I've learned to drive this car like a bat out of hell.

Originally posted by Elara
Whoa there, before anyone else blames stuff on me- the best I got was just under 26mpg, and it was for only about half a tank.

I'm currently averaging around 17-18mpg, but then I've learned to drive this car like a bat out of hell.

It's still all your fault :D :D

My mileage just went down, I got 10 on this last tank. I need figure out a good place between no gas pedal and WOT ;)

It can only be one of three things. He's full of crap, He's measuing his fuel wrong, or he's got a true one of a kind lean tuned rx8 that we all don't have. That's basically what it comes down to.

Originally posted by VikingDJ
It can only be one of three things. He's full of crap, He's measuing his fuel wrong, or he's got a true one of a kind lean tuned rx8 that we all don't have. That's basically what it comes down to.

Zerobanger reported 30.22 mpg on a long distance hwy trip going 57 mph (slightly under 3000 rpm) on cruise control.

For more on evaluating these atypical data, please see my new mileage thread elsewhere in this same forum.

The data sets are way too scientific here ;)

I will admit that I get in the 20's when I'm doing longer runs on the freeway in 6th gear. But running around town, hitting lights, pushing the car hard, etc... That's a recipie for poor fuel ecomomy.

FWIW, in my 03 1.8T GTi with a lot of mods, but stock turbo.... I got about 16 mpg. That doesn't mean much, except for a comparision on how I drive.

WOW did all that driving and no LICENSE lucky a trooper did not see you. they love sports cars and young drivers not that they profile but they do love them. :D. Dont worry only a couple of months left.

I had someone in the car with me. Cops aren't as bad as you think, i had one come over with his 8 to get some decals installed. Afterwards we went for a cruise on the highway and we both were up to about 100 at one point. He also had no problem with me going out for a curise with no licence. And he paid in PBA cards.

thought he was gona send u one when they got in. and the decals look great got 3 people sofar as where i got them while i was at the dealership.

lol you got me :p Where are those card btw

You guys still getiing 31 MPG huh? Me too.

From my experience, rotary engined cars mileage vs speed etc. is really no different than piston engined cars.

The higher the RPM the poorer the mileage. Long trips with few stops will give the best mileage. Hills will decrease mileage (you loose more going up than you gain going down). Best mileage will be when cruising at around 80 km/hr (50 MPH), keeping RPMs around 2500 to 3000.

All that being said, last year in my 3rd gen RX-7 I got 9.5 L/100 km (I usually get from 10 to 12). That was on
<- that road (avitar) and not sparing the HP. It has 18% grades, slow to 10 km/hr corners (and almost no traffic or police ;). It's an RX road!!!! :) :) :)

Geez Polak....I bet you don't want to post info. like that again. Lots of crap, doubt and teasing.... You sound like you are doing well with your decals & your awesome 8..... so here's to you!!! I know many just like to have fun and give you a hard time. I am sure most are harmless. Long thread. Whew. Anxiously awaiting my sample carbon fiber RX8 decal.

I think SOMEONE drove your car while you were at work/sleeping and put some gas in it so you wouldn't find out. :)

If it drops back down to 18-20 in the next test then you know something was messed up with that 31 MPG.

Well I haven't been able to duplicate 31, but I thought Zerobaner's 30.22 would add some validity to my MPG.

Turn off DSC if you aren't pushing the car hard, you'll get a couple extra miles per gallon. It works.

Try filling up at a different gas station. The pump might be off calibration at the station you got the 31 mpg tank.

Road demon....true...can happen. A Phillips 66 gas station said I had over 16.4 gallons in my car...hmmmm...how could that be with a 15.9 tank.....will call them on it next time!!!