Hey guys,
I don't know if it is just me but how many k's do you guys get out of a tank?
I get about 340km's out of about 50L which i think is a tad less than 15L/100kms.

Granted this is done driving like miss daisy shifting below 3000 and almost choking the gears.

I have read the thread about fuel economy and am wondering how some people achieve better economy? If i drive her like God intended, then I don't even want to know what kind of economy I am getting.

I am not complaining about fuel economy since I already knew this and am perfectly happy to pay for it, only it wouldn't hurt to get a bit more out of her If i could.
PCM upgrade maybe?

I never shift below 5000rpm. Economy has averaged 13L/100km.

i get 330ks regularly driving around town & giving it plenty of revs most of the time . Try having a bit more fun & see what mileage you get then - maybe it will be the same . I am getting a piggyback ecu & will post if there are any mpg improvements .

I never shift below 5000rpm. Economy has averaged 13L/100km.

Yeah... Like you get Sydney traffic up in Katherine... not.. :mdrmed:

I've said this to the Yanks so I may as well say it here too:

Fuel economy threads are the beige wallpaper of RX8 forums. :mdrmed:

It drinks - get over it. ;)

OK things that I've notice that will dramatically increase your fuel consumption.

1. Being stuck in traffic.
2. Fouled / dirty spark plugs
3. short shifting.. ie shifting before 3000rpm
4. redlining all the time.. a few times a week is good, but beeping with every shift will make her drink like an alcoholic during happy hour
5. racing / tracking her.. but you knew this right?? ;-)

I get about 12lt/100kms....but in SA we have no traffic....try switching the car off in heavy traffic when you are idling for ages if you are really concerned...

As time passes Grasshopper you will learn not to sweat the small stuff. :Freak_ani

Better yet....cover the fuel gauge on the dash except for the low fuel light...don't count k's and drive the car to enjoy it....

There's always the hydrogen cars...battery operated Honda's or Toyota Pruis....god forbid I have uttered those words...... :hahano:

The car will use more fuel and your economy isn't too bad considering....

Have you got your tyres and oil sorted yet?? :nono:

340 / tank isn't bad!

My avg is around 300-320 kms, but then again, I always have fun with it.

I get slightly better mileage when using BP Ultimate, but I use Optimax because for some reason, BP eats away the famous rotary 'burp'.

I have used sCANalayzer to try and fine tune my driving for optimum fuel consumption but that'd mean driving like a sissy all day; something i CANNOT do.

I've never had less than 450km out of a tank. Maybe I did once.....up at the Nats.

By the same token, I've only been brave enough to stretch 500km out of a tank twice... :) . I redline very rarely, but I hit 7k fairly often. Done nearly 50K.

I've never had less than 450km out of a tank. Maybe I did once.....up at the Nats.

I got around 400-450'ish (twice!) when I first got the car and was forced to drive it gently for the first 1000 kms :P

I've never had less than 450km out of a tank. Maybe I did once.....up at the Nats.

By the same token, I've only been brave enough to stretch 500km out of a tank twice... :) . I redline very rarely, but I hit 7k fairly often. Done nearly 50K.

Redlines very rarely.

Has never scratched a rim (or anything else).

Achieves excellent fuel economy.

Gomez, are you driving Miss Daisy around Melbourne or what? :mdrmed:

I'm happy to say I have no clue what my fuel economy is. When the tank gets low I fill it up. Otherwise, I'm having too much fun to give a stuff. ;) :p:

I'm happy to say I have no clue what my fuel economy is. When the tank gets low I fill it up. Otherwise, I'm having too much fun to give a stuff. ;) :p:

Same here.

I never shift below 5000rpm.


Are you talking about your car of your jet? :eyetwitch

I'm happy to say I have no clue what my fuel economy is. When the tank gets low I fill it up. Otherwise, I'm having too much fun to give a stuff. ;) :p:

My sentiments exactly

OK things that I've notice that will dramatically increase your fuel consumption.

...
3. short shifting.. ie shifting before 3000rpm
...

you can take it from my wife that shifting below 3000rpm is a surefire way to get 500kms to a tank (roughly 11lt/100k). :shocking:

Where as me, I also get pretty consistant 15lt/100k

Differences? My wife drives flat, uncongested roads and shifts latest 4000rpm (I know cause it irritates me to see my car so abused :yelrotflm ), I drive pretty much short trips in hilly areas and generally shift around 6-7000rpm

I drive the way i feel like. Some cruising, some flooring it and enjoying the beep. Average 17L/100km if its only city driving. Mixed driving average 15.5L/100km. All those are when having fun. Now the best part was when i took a longer trip and was driving in relatively slow speeds (130-140 km/h) i got suddenly 430km on that tank instead of normally 310-315.

And the lesson of the story: Its an RX-8 drive it so you have fun!

I kept some detailed logs a while back on a Sydney brisbane trip.
It did not make much difference for me whether I was thrashing it or driving miss daisy around the city:

city/thrash cycle= ~320-340klms/tank
highway driving 110k cruise with overtaking squirts (3rd gear...): 580k/tank is my best, 550 avg.

I get around 380km to a 55 litre fill around town and it has been that way for 2 years. Car has 65000Km now and have not seen any change for at least three flash code updates.

I'm getting 330km per tank driving Katherine-Darwin, but that is sitting on 170km/h for two thirds of the trip. I don't feel so bad about my fuel ecomony now!

I actually "flamed out" with 5km to go last time. Good thing I carry a 5L jerry can just in case.

Are you talking about your car of your jet? :eyetwitch
You would cry if you knew what the fuel economy of that is like.

Wait... I just worked it out. 460L/100km on the highway. More for "spirited driving". Ouch!

You would cry if you knew what the fuel economy of that is like.

Wait... I just worked it out. 460L/100km on the highway. More for "spirited driving". Ouch!

:mdrmed: Look on the bright side - we're paying your fuel bill. :bootyshak

:mdrmed: Look on the bright side - we're paying your fuel bill. :bootyshak

So you are one of those Lawyers who pays their tax? What a novelty.. :mdrmed: :SHOCKED: :wink2:

12.6L/100k ...long term average fuel economy...all the data...in beige...if you want it :boring:

I've never had less than 450km out of a tank.

Geez, 'mez....no wonder those rims are mint :)

I use my car as daily drive and travel from 90 kms to and from work on M4,7 & 2. I avergae 11l/100 and regularly get 540 kms per tank

I use my car as daily drive.......and regularly get 540 kms per tank

Now THAT...THAT is dead set amazing. What colour is your car?? :)

Geez, 'mez....no wonder those rims are mint :)


....yes timbo, I find it much more efficient to drive on the road, not in the gutter.... ;)

I use my car as daily drive and travel from 90 kms to and from work on M4,7 & 2. I avergae 11l/100 and regularly get 540 kms per tank

It seems the efficency increases as the engine ages.

I have just clocked up 40 000k and I now regularly get 500km per tank. I dont use the car as much now days so partake in spirited driving when I get the chance.

skc

Guys, has anyone given the new Shell long range unleaded a go? I've used a couple of tanks of LR Unleaded 95 now, and there are definite improvements in efficiency to be had. Around town, getting 11l/100km, down from around 13l/100km. (Fuel light comes on at just under 500km instead of 415km).

I also used a tank driving from Melb to the Great Ocean Road and back, so prob 400km of highway, and 200km of flogging the car in the hills. I still got an easy 10l/100km, so prob could have done better with steady highway driving.

I'd be interested if you guys get similar results :)

So you are one of those Lawyers who pays their tax? What a novelty.. :mdrmed: :SHOCKED: :wink2:

Mate, what I pay in tax p.a. would keep you in GPS systems for life. :mdrmed:

12.6L/100k ...long term average fuel economy...all the data...in beige...if you want it :boring:



Geez, 'mez....no wonder those rims are mint :)

:rollingla :rollingla :rollingla And that's coming from the Chairman of Beige!

....yes timbo, I find it much more efficient to drive on the road, not in the gutter.... ;)

I'll be keen to see how many apexes you miss at the next Nats. :mdrmed: :p:

maybe gomez has a couple sets of wheel bras for his daily driving??

back on topic. i have almost 10,000km on the clock after 18 months of use and I get approx 300km per tank all in short trips in sydney traffic in hilly north shore. Mostly fill up with 95pulp from shell or bp.

in sydney traffic in hilly north shore.

You can't be too far from MikeyR and me Azza. Which suburb are you in (PM me if that makes you feel better about revealing your general location)?

We should drag you away from parenting duties for a meet 'n greet somewhere. :) We can talk fuel economy. :mdrmed:

Mate, what I pay in tax p.a. would keep you in GPS systems for life. :mdrmed:

$900? :mdrmed:

I'll be keen to see how many apexes you miss at the next Nats. :mdrmed: :p:

All you'll be seeing will be a rapidly diminishing view of my Hymee exhaust tips, Tiger...... :)

$900? :mdrmed:

I wish! :bootyshak

Okay, so my analogy was crap. :mdrmed:

All you'll be seeing will be a rapidly diminishing view of my Hymee exhaust tips, Tiger...... :)

Just keep talking yourself up there 'Mez. :mdrmed:

You can't be too far from MikeyR and me Azza. Which suburb are you in (PM me if that makes you feel better about revealing your general location)?

We should drag you away from parenting duties for a meet 'n greet somewhere. :) We can talk fuel economy. :mdrmed:

Bleah I don't care where people know what general area I live in. I'm in Castlecrag. The suburb Walter burley Griffin designed and lived in.

By all means, lets talk fuel economy! The little one loves driving, only she cries when I take her out of the car or we are stopped at traffic lights. mmm or maybe it's me cryin :scratchhe

Okay then, we'll sort something out with the sheep rustler. I'm in Frenchs Forest and he's not far away either.

Wow, such fantastic fuel consumption, you guys get it too good.

Cosmo........ 3-rotors - two turbo's - auto

City cycle - 430km (max) with 80 litres consumed

Doesn't even get reved hard either, with around 580nm of torque on top. It bearly needs more than 3000rpm to punch through traffic........... :FIREdevil

Mixture of having fun and freeway cruising ... always get 11L/100hm

Okay then, we'll sort something out with the sheep rustler. I'm in Frenchs Forest and he's not far away either.Oy Kojak...nough with the sheep jokes already!!:spank::mdrmed:

Azza, I'm up in Turramurra, reckon a hook up sounds good. Rev & I are planning a quick (short) drive on Saturday morning. There will be an SMS you may want to join in.

M

And i got about 10L/100 on my trip to Orange last weekend. Round the city i deliberately don't want to know!!!

M

Oy Kojak...nough with the sheep jokes already!!:spank::mdrmed:


Now you're showing your age! :mdrmed: :mdrmed: :mdrmed:

Yeah, come along Azza. I need to find out what the little frog thing in your avatar is supposed to be... :Freak_ani

And what Azzaboynt means... :Eyecrazy:

Its Keroppi isn't it?

Its Keroppi isn't it?

It's what? :Wconfused

Azza's frog.

Azza's frog.

I gathered that - I just didn't understand the providence of the name you ascribed to it.

Yer, I usually get about 400km out of a tank using standard Optimax. I filled up with Mobil's equivalent for the first time last week, so we'll see how we fare with another brand of petrol.

Has anyone tried out Optimax Extreme? Does it pay to use it at all in terms of economy?

Same here.

Ditto :rock:
PS: I also get free petrol :ylsuper:

Ditto :rock:
PS: I also get free petrol :ylsuper:

Must you keep telling us that Rick! :spank: :mdrmed:

Must you keep telling us that Rick! :spank: :mdrmed:

Oh yeah right - sorry :boring: for some perverse reason it makes me feel really good, but i s'pose i sound a bit like a :jerkit: eeekkkk - sorry :spank: :)

If you get free petrol ... why not spread it around a bit?

If you get free petrol ... why not spread it around a bit?


Rather get a bigger salary package tax free and buy a petrol refinery . :rollingla

Michael

Oh yeah right - sorry :boring: for some perverse reason it makes me feel really good, but i s'pose i sound a bit like a :jerkit: eeekkkk - sorry :spank: :)

We're just jealous. :)

I've managed to get about 450 from about 50-52ltrs the last 2 fills actually.

Even on our drive couple weekends ago, I managed to get 400 from it.
Quite impressed.

I usually put in PULP95.

C.

I've managed to get about 450 from about 50-52ltrs the last 2 fills actually.

Even on our drive couple weekends ago, I managed to get 400 from it.
Quite impressed.

I usually put in PULP95.

C.Damn Chris, Rev and I didn't even make it back to Katoomba!! Maybe our 98 was evaporating faster!

Damn Chris, Rev and I didn't even make it back to Katoomba!! Maybe our 98 was evaporating faster!

Or maybe I wasn't driving it hard enough. Probably the reason there was a train of cars behind me. Heh heh heh.

C.

I just managed around 10 l/100km on a road trip - cruising 118 km/hr with three people and luggage in the car! My normal mileage is 12.5 to 13.5 l/100km.

Damn Chris, Rev and I didn't even make it back to Katoomba!! Maybe our 98 was evaporating faster!

Actually, I still had about quarter of a tank. It was more a need to expel liquid that caused me to call a stop. :mdrmed:

:boring: I'm sorry guys, but I find the "I get xxx kms from a tank" comments to be almost totally meaningless. There are so many variables which affect each tank range measure, including the season, fuel brew and ambient temps.

I was totally and unashamedly anal in running an electronic log book while I had my 8, and can tell you categorically that in the driving style and mix that I did:

- Long term average fuel economy for the 8, over 61,000k was 12.6L/100k -- yes, I will probably be called to give evidence on behalf of MA if anyone takes them to court over misleading fuel economy claims -- my car did what it said on the box :o:
- Worst, excluding track days ;) was 14.7L/100k -- what I call crappy urban driving
- Very spirited driving (AKA track work) with lots of WOT, will run you into 25+L/100k...no worries (but it's fun!)
- Best, secured on double demerit long weekend trip with cruise glued to 110kph, was 9.8L/100k

That was my car, with me driving, over the trips and use I did -- yours will be different.

Now, I'll shut up, but before doing that I just want you to know that the Polo, under exactly the same conditions (and with the same point to point times)...is averaging 7.8L/100k :o::mdrmed: :mdrmed:

the Polo, under exactly the same conditions (and with the same point to point times)...is averaging 7.8L/100k :o::mdrmed: :mdrmed:

Yes, but it still looks half as good too. :p:

As for times, have you tracked it yet Timbo?

Yes, but it still looks half as good too. :p:

As for times, have you tracked it yet Timbo?
True, but evidence suggests it'll depreciate half as slowly:bootyshak

Not tracked yet, but MACCAA & I are looking to make some time

True, but evidence suggests it'll depreciate half as slowly:bootyshak

Not tracked yet, but MACCAA & I are looking to make some time

Oh, it'll depreciate just as quickly. We've just got farther to fall. ;)

Look forward to hearing comparable track times (i.e. Wakefield) in due course.

Who cares about fuel economy! My Accountant tells me I have to spend more $$ on the car!! So heavy on the right foot will be me. Love wizzing away from the traffic lights getting up to 60 warp speed and then buttoning off... :rock:

Get an Accountant like mine..lease the car and settle in for fun miles! :rock: :rock:

I don't really mind ... the RX8's seriously no worse than a mid-capacity V8 so why complain about it? If you're using too much petrol, take it easy on the accelerator!

I try to take it easy most of the time, but I get the urge to pump the accelerator ... especially when going around the twisties on the way home from work ;)

Oh yer, optimax extreme gets the thumbs up for economy.

I've been meaning to ask if anyone saw the segment on ACA or was it Today Tonight about Optimax extreme...

For those that didnt its an E10 mix, meaning it is 10% ethanol. But its 100RON octane. SO we get a more predictable flame front but less dense fuel...yet we have to pay, is it 15c/litre, more for it?

Cromax, I am not doubting your economy rating of 2 thumbs :) up but I dont see how it can be more economic when its a less energy dense fuel.

I'm not sure what they said on ACA and TT, but most of their stories on this stuff is sensationalised garbage to make people watch.

Essentially, by lower density, you're talking about 4kg/m^3 ... that is absolutley nothing! Therefore the difference in density between the regular and extreme optimax is minimal, if not negligable. The end boiling points are both 196ºC and they both contain roughly the same amount of sulpher. Benzine levels are higher on Extreme though, meaning it burns a bit cleaner ... and it has a higher RON of 100.4 instead of 98.4.

Here's the TDS for them:
http://www.shell.com/static/au-en/downloads/fuels/tds/shell_optimax_tds.pdf
http://www.shell.com/static/au-en/downloads/optimax_extreme/extreme_tds.pdf

I'd be interested if you have any data to support the claim that using Optimax extreme results in better fuel consumption figures.

I certainly tested various 98s vs 95s and found absolutely no difference in results

There have been various threads on this. The scientific explanation (simplified) is that while you may get better figures with a normal reciprocating engine, octane rating does not have the same effect on rotary combustion.

My advice: save your money and use a 'good' 95 ;)

I agree - use 95 and bury the foot at every responsible opportunity. :rock: :mdrmed:

Life's too short to overanalyse whether you're spending $10 more on fuel each week than the next guy. :Freak_ani

Sorry didnt mean that to come out as if I actually believed what was said, just relaying what I saw.

Just gone back over what I read previously on this. Please realise I am a scientific dunce so I may not have the correct interpretation. The figures I was remembering were MJ/Ltr which for regular fuel is apparantly 32. Ethanol is about 20 and E10 ends up being 28 which is a 12.5% loss of energy over non blended fuel. So it would need to be a lot cleaner to make up for that sort of loss.

Or have I totally misunderstood it all?

I love fuel economy talks of regular versus premium unleaded. For all those Opticrap...oops I mean Optimax extreme fans, do me a favour are you getting 10% better fuel economy from it, because that is what you are paying at the pump. The answer is always no, performance is also questionable.

BTW extreme is 5% ethanol not 10%, government regulations allow 10%.

Ya see, now you've gone and messed up all my arithmatic :p:

They haven't just gone and added 5% of ethanol to a tank full of optimax. They've played with the structure of each to make sure the density isn't affected.

I find it smoother than Optimax 98, and I really don't care about the extra cost, as the amount you're talking about is negligable. I prefer not to drive with my foot buried on the accelerator as I do want to keep this car as long as I possibly can.

I prefer not to drive with my foot buried on the accelerator as I do want to keep this car as long as I possibly can.

Three words in response to that;

"BUY A VOLVO" :rofl:

You bought the wrong car if you don't want to bury the foot.

Well, I was just going to comment that that response sits rather uncomfortably with Cromax's advice on how to get rid of carbon deposits :rofl:

I want to keep my car for a while too, which is WHY I bury the foot as often as possible.

You'll have more problems driving like Nanna. :mdrmed:

11l/100km coming back from around Nowra on the weekend, four up, boot full, 115kph, 95RON BP PULP.

I am still trying to use up a tank. Please give me another week. ;)

Three words in response to that;

"BUY A VOLVO" :rofl:

You bought the wrong car if you don't want to bury the foot.

HAHAHAHA!

No, the RX8 is a cornering car dear boy, not a dragster. If you want a dragster, you bought the wrong car! Go buy something american!

Besides ... a worked T5 wouldn't be too bad ... but I'm thinking you were too closed minded to even look at volvo. Am I right?

I want to keep my car for a while too, which is WHY I bury the foot as often as possible.

You'll have more problems driving like Nanna. :mdrmed:

I never said I drive like a Nanna.

If you want to thrash your engine, go right ahead ... it's your money not mine. Commodores are quite cheap, maybe you can get one once your engine turns into a claymore ;)

Oh yer ... and I've seen it happen to four RX7's, one was on a dyno ... bits go everywhere ... quite entertaining.

No, the RX8 is a cornering car dear boy, not a dragster.

Wow I have only had the car for 3 years, where were you when I was buying it, I could have done with this advice then.


... but I'm thinking you were too closed minded to even look at volvo. Am I right?

Not at all, I look at them all the time, usually as I fly past giving the sh#t house driver the finger as I go.

See I am open minded :mdrmed:

If you want to thrash your engine, go right ahead ... it's your money not mine. Commodores are quite cheap, maybe you can get one once your engine turns into a claymore ;)

:rolleyes: Gee, thanks Nanna. I'll be sure to remember that. Lucky I've got you to help me out with these things. Without you to advise me, I'd never have known where the redline was.

Very good *claps hands* now off you'll go and play!

And you're both from Sydney, what a coincidence!

lol I'll suss him out and c if hes nanna driver ;) We'll c how well he keeps up wit me on the twisties :P

He he with only 33 posts up your sleeve Cromax you have hit what's called the RX8 nerve! You better put your money where your mouth is huh, Kal will sort you out quick smart if you are not apt at steering!!

Honestly though, don't be rude it;s only a forum and it's only a car come on!!

I drive mine like a rotary should be driven, don't care about economy no more and BTW if the tacho goes that high..use all them revvs....it will do the engine the world of good, however for all of you waiting for your engine recall maybe only revv to 5,000 rpm.

I don't use supermarket fuel and I don't care for anything other than 95. However knock yourselves out if you pay more for something you burn....do ya wear armani shoes and have his and hers sunglasses too....ROFLMAO!!!!!!

One final note. Glad Adelaide seems to be left out of the rivalry.

Well I'm off to pollute the atmoshere and burn some 95.... :mdrmed:

Kal will sort you out quick smart if you are not apt at steering!!


^^ lmaoooo

And you're both from Sydney, what a coincidence!

Wow, I under estimated you, I thought your arguements were alreday piss weak, but you certainly proved me wrong.
Please go easy on the bombardment of witty comebacks you are killing me here.

It's OK junior when you learn how to really drive a car and realise that pushing a car when driven right is not thrashing it then you can come and play with the big boys.

Until then you keep riding your clutch and thinking how smooth that gear change was, whilst the rest of us enjoy the car for what it is.

Maybe the auto was more your speed.

Boyz.......................... *rolls eyes* are we going to have a pissing competition here? Because I rekon Julia and I would win :P

Boyz.......................... *rolls eyes* are we going to have a pissing competition here? Because I rekon Julia and I would win :P

Bet I can pee higher than both of you. :piss: :p: :rollingla :rollingla

But I'm happy to admit Kall can drift better than me and Julia is for sure faster. :bowdown: :bowdown: :)

It's all good with me. But having gone after me, Gibbo and Timbo all in the first week or so, Cromax might do better to chill out a bit. Let's talk cars and park the nasty shite. :angel:

Sounds fine with me, that's what I am here for :)

This is all getting out of hand. I've obviously hit a nerve, either because a couple of people have big heads, or because they have shrunken extremeties. I'm leaving it here ... you're acting like kids when I'm the youngest here!

I really don't have the time to be bothered arguing with insufferable pests. Guys, and you know who you are, don't bother replying to this post as you won't get the reaction you desire.

Get back on topic FFS!

At this juncture, I'd like to point out that I am Gomez (The Real Gomez)....I am not Cromax. We share a common capital city, that is all.... :angel:

Hi Cromaz, I'm Kall (The Real Kall), and we also share common capital city.

Here you go Cromax....if you listen carefully it's playing for you.

:ftw:

:scratchhe Gibbo and I both bury the hatchet and this guy is still dishing out the gratuitous insults.

Mate, the only person acting like a kid in here is you. Don't worry about a response. You've gone to the top of my ignore list with a bullet. Indeed, you're the only one on it.

Do you guys realise the threads mogley starts turn into arguments?? lol

muhahahahhaa

do u like the jungle book, or is ur name really mogley??

It's Mogleys fault, this and the RDT thread.....

Damn You Mogley....Damn you to hell! :)

do u like the jungle book, or is ur name really mogley??

My 8th grade girlfriend gave that name to me and It suck ever since. Maybe she thought I was a monkey.

Besides I don't think I would have made it out of highschool alive if my name really was mogley.

It's Mogleys fault, this and the RDT thread.....

Damn You Mogley....Damn you to hell! :)

Excellent..... :smoker: :uzi: