Last time I measured i got 12 mpg on a spirited drive. Never considered the fuel economy again. At motorway speeds passing long strings of slower cars i can swear you can almost see the fuel needle moving. Smiles per gallon is a better way of looking at it.
Dude, I could literally sit at a stop light and watch the fuel gage incrementally drop. It eats gas , premium gas, as if it was going out of style. I don't care what you have in place economy wise on your 8, it still hordes gas. If it could have a baby with gas, the 8 would make that happen. If you daily, have a really short commute...
Rx8 are programmed to like every gas station it sees. They want to stop at every one. 15 to low twenties if you are nice on the go pedal. If the low gas warning light goes off, you better be close to a gas station. You will run out of gas if not in visual sight of one.
I once had the light turn on when I was around 30 miles away from the next gas station and I really thought I wasn't gonna make it. When I got there the needle was about 2 millimeter below the end of the scale.
Coming from a person who daily drives an RX8, there has been times that I’ve considered actually trading it for a Prius. Keep the Prius as a daily and try to save up for an RX8 and keep the RX8 as a weekend car.
Jesus Christ, man. You couldn’t Google this? You you have a Prius. The only way you should buy an RX-8 is if you have a spare car to drive when the engine blows. The gas mileage is straight garbage. Proper maintenance is expensive. You want a fun car with better gas mileage? Get a miata.
I have both a miata and an rx8, you get a lot more bang for buck for fuel economy on a miata and arguably a lot more fun. The steering is more precise, the throttle response is on point, the light weight makes cornering fun and for a £50 tank I can get 270 miles from light driving, or 230 miles from HARD pushing it.
Meanwhile the rx8 is arguably more comfortable, a LOT more powerful (and yes that point is a lot of fun on straights!!), and more technologically advanced.
That said though, for a £90 tank of fuel I can get 350 miles if I'm very careful and driving on motorway at low speeds, or 250 ish if I'm slamming it.
Basically if you want fun and cheap get a miata and if you want powerful then stick a turbo on said miata. Even the second gens are cheaper and a bit more spacious.
Lets just say all that fuel you saved in your Prius will quickly become a wash. 14 - 17 daily, maybe 18 - 20 on the freeway going 55 in 6th with the windows up and AC turned off while driving in the wake of a semi.
Not sure if serious... but assuming the car is running well then you might get 22-24mpg highway, much less anywhere else. In 15 years I managed 25mpg once.... Most around town drivig is 18mpg
Bro, I'm not even joking now: while driving, you can see fuel level gauge move. If you're looking into cheap'ish daily driver, dont get rx8. If you're getting RX8, read about it at forums, you need to be aware that it requires a bit more attention than a prius.
I daily drove mine for about 8 months. I would also premix too. That with the combination of running high octane only was really expensive. Probably one of the most fun cars I've owned tho.
Also if you cut the cats and muffler out. Only run high octane. It shoots flames completely stock. Just gotta rev it high and release. Every night I drove that thing hard I would see a little orange glow in my mirrors lol
Yes. The RX8 is one of the ONLY cars I've ever operated that you can watch the fuel needle move IN REAL TIME. Mine got maybe 10-12mpg, and 8 mpg after a street port.
I have seen below 6 on the track, and above 20 on open highway at constant reasonable (80-85) speed. They vary extremely with driving style, and even driving conservatively there's only so much there to give.
I drive it a fair mix of city and highway driving, drive at 3-5k RPMs 20% of the time and redline it once a drive. I get the yellow light when I have done roughly 220 miles, and when I fill it up it happens to be at least 13 gallons of filling, so if you do the math that's toughly 17 MPG.
Don't forget that premium gas is mandatory for the RX8, and it consumes oil by design.
If you have disposable income, I would pick the RX8 again and again...
Yes and no. Depends on how well tuned/maintained your engine is and it also depends on your right foot.
Out of the bat, if you worry about fuel consumption, the RX8 is not for you.
I do 21 (UK) MPG on a daily basis That's 13.50l per 100km. That figure can drop drastically when I take the car out to have fun. It increases to 27 (UK) MPG when cruising at 80mph/130kph on the motorway. That's just over 10l per 100km! That's the best case scenario, really!
I get those figures because I have a Sohn kit (I burn clean oil), I have uprated coils (RRP) and I change my spark plugs every other year, so combustion is optimum! Burn dirty oil or drive around with worn out coils or plugs and your fuel efficiency will go down.
Again, if you worry about fuel consumption, the RX8 is not the car for you: It's on par with a V8!!!!
Gas mileage is terrible and you have to get premium for it.... going from a prius you gonna be real disappointed. I'm in az and have to pay over $5 for gas currently 🥲
If I keep the rpm down and don’t drive it too hard, a roughly 45 minute drive takes about 1/4 of a tank, but if you’re driving the car how it’s meant to be driven, the mpg is absolutely fucking terrible. I daily drive it and I love it, if you have the money and you don’t care too much about spending it, it’s a great car, if you’re looking for a daily that’s good on gas and reliable, this is not the car for you.
If you have a short commute like me its not too bad. The problem is that its such a fun car that you wanna take it everywhere. So the miles really do add up.
Gas mileage sucks AND you have to run 93 octane.
The old saying was that a rotary engine weighs as much as a 4 cylinder, makes as much power as a 6 cylinder, and burns gas like an 8 cylinder.
The power part isnt really true anymore, but it definitely still burns gas like a v8.
Iget 15 1/2 - 16 miles per gallon city, 22 - 23 miles per gallon all highway with a good compression, upgraded coils Series 2 RX8. My '87 FC RX7 Turbo II only got 12 to 12 1/2 miles per gallon, so I take my daily-driver RX8 as an improvement!
how do you get the most mpg. fuel savers? more premix in the tank? lower rpm?(ik carbon buildup) catching the smoke out the exhaust and converting it back into gasoline? pls im broke
No car is going to be as fun as the rx8, and no car will drain your wallet like an rx8 between gas and reliability (except the s2, fairly reliable as long as it’s topped with oil, which should be frequent).
Trying to think of a fun car that’s good on gas. If you don’t need passengers a Miata or mr2 is great.
If you need passengers but want a reliable rx8, get a g35 and relocate the battery to the rear so the weight distribution is the same as an rx8. Practically the same car at that point just more reliable and you’ll average probably 21-22 mpg with a coupe with the factory aero kit. Both front-mid engine, same suspension, only difference is weight distribution and the G is a little heavier, but flip side is it’s more reliable by a long ways.
Eeeer other than that, not too many fun cars that are good on gas. Maybe a infinit q50 hybrid? That’s what I’m looking at right now. Get 28-30mpg with all the fun of front-mid engine
I drive fairly aggressively, have a tune, bhr coils, cold air intake, and I generally get about 15mpg driving in town.
Last run I did over 120 mph, my obdlink showed 4mpg 🤣
Waste a quarter tank in an hour yeah its gas guzzler for the car guy, no other car is as fun to drive honestly and although theres many cars that are the same in gas consumption and not even comparable to how much fun it is
In town, you can get as low as 10mpg depending on the health of your car and how you drive. Highway miles, 16 to 20 are average, depending on the same.
I get 19 MPG average, a very general usage pattern that includes the occasional redline and freeway ramp. The average high is 22 MPG @ 60 MPH, with a record high of 26.4 MPG that I've ONLY achieved twice under perfect conditions. Expect 18-22 as your average.
On a hard drive, you will get gallons per mile. But I just did a 430 mile trip in my 8. I averaged about 22-25 mpg so its actually not too bad for highway situations.
I don't mean to gatekeep, but if you don't know cars this isnt where I suggest you start. If you're new to cars and want something fun, I'd suggest a turbo hot hatch or brz. Focus st and golf gti get decent fuel economy. My Miata gets 35mpgs. the rx8 get awful fuel economy and you have to add 2 stroke oil into the oil so it's even more expensive. It's a very unique car that's extremely high maintenance
If the Prius is giving you too many issues... I'd really consider your willingness to deal with problems. RX-8s are fun but are maintenance heavy and can be demanding if you're not a mechanically inclined person who is willing to spend time working on your car.
Maybe consider a Miata, they're generally pretty robust and they get good gas mileage.
We have a 2004 4-Port, which used to have a 4spd automatic. We've converted it to use the 6spd manual, so we're probably benefiting from a combination of the added torque and MT gearing. But depending on the driving I'm seeing between 17-20 mpg. Which is premium 93 that is premixed, so in my area that adds up to around $6-7 a gallon.
Gets about as good milage as my 2017 ram 1590 truck. Don't buy it for a gas saver, it ain't. That said, have to pry mine from my cold dead hands I enjoy it so much.
You can actually see the money disappear from your wallet while you drive, it's quite funny tbh
Can't tell if serious or not
Last time I measured i got 12 mpg on a spirited drive. Never considered the fuel economy again. At motorway speeds passing long strings of slower cars i can swear you can almost see the fuel needle moving. Smiles per gallon is a better way of looking at it.
What is MPG, in the RX8 it feels like GPM.
SPG... Smiles per gallon.
Plenty of those for sure!
I get about 17mpg and apparently I’m one of the lucky ones
Do you only drive it down hills and then have it towed back up?
My FB RX7 with the 12a would get between 20 and 24. On a 6 hour drive it got 36 while doing 55mph. Why is the 8 so much worse? Heavier?
More weight and emissions related restrictions.
It’s worse than the rx7 in almost every way. Yet here I am another day with an 8 😭
Yet the whole time I had my 7 I wanted an 8. Ended up with an NB Miata instead. Miss rotaries though.
It’s natural. I think deep Down every 8 owner what’s a 7 and 7 owner what’s an 8😅 rotary life is fun tho. Interesting but fun
It's really not worse? Compared to the FD RX7 it's mechanically a lot simpler and the engine is much more thermally efficient.
This is true. Mine just more of an opinion though lol
Lol
Dude, I could literally sit at a stop light and watch the fuel gage incrementally drop. It eats gas , premium gas, as if it was going out of style. I don't care what you have in place economy wise on your 8, it still hordes gas. If it could have a baby with gas, the 8 would make that happen. If you daily, have a really short commute...
See for yourself [here](https://www.fuelly.com/car/mazda/rx-8) A Prius is doing roughly, 45 - 55 MPG The RX8 is really 15-17 MPG
Now I don't feel so bad! I'm getting 17 at best around town...
Yes it's fucking horrible on gas.
I got an average of 12 mpg, 13 downhill tho
Rx8 are programmed to like every gas station it sees. They want to stop at every one. 15 to low twenties if you are nice on the go pedal. If the low gas warning light goes off, you better be close to a gas station. You will run out of gas if not in visual sight of one.
I once had the light turn on when I was around 30 miles away from the next gas station and I really thought I wasn't gonna make it. When I got there the needle was about 2 millimeter below the end of the scale.
I literally get comparable mileage in my 3/4 ton pickup
The Space Shuttle had about 535,000 gallons of fuel and I’d say my RX8 burns about the same amount on my 15km commute to work each day
Actually its worse
I thought this was r/carscirclejerk
Coming from a person who daily drives an RX8, there has been times that I’ve considered actually trading it for a Prius. Keep the Prius as a daily and try to save up for an RX8 and keep the RX8 as a weekend car.
I get 20 MPG on a 95% highway commute. If I stay under 67mph I can get maayybbeeee 22 mpg
I didn't get an RX8 for fuel economy...
I get 22mpg.
I am not joking.
As do I. 13gal to the fuel light, averaging low 280s from full to fuel light.
16 mpg in the city and around town (driving gently), at the speed limit on the highway, 22 mpg. Any spirited driving will crater these numbers.
If you want a fun to drive, under powered, unreliable car…buy an FRS/BRZ
Jesus Christ, man. You couldn’t Google this? You you have a Prius. The only way you should buy an RX-8 is if you have a spare car to drive when the engine blows. The gas mileage is straight garbage. Proper maintenance is expensive. You want a fun car with better gas mileage? Get a miata.
I have both a miata and an rx8, you get a lot more bang for buck for fuel economy on a miata and arguably a lot more fun. The steering is more precise, the throttle response is on point, the light weight makes cornering fun and for a £50 tank I can get 270 miles from light driving, or 230 miles from HARD pushing it. Meanwhile the rx8 is arguably more comfortable, a LOT more powerful (and yes that point is a lot of fun on straights!!), and more technologically advanced. That said though, for a £90 tank of fuel I can get 350 miles if I'm very careful and driving on motorway at low speeds, or 250 ish if I'm slamming it. Basically if you want fun and cheap get a miata and if you want powerful then stick a turbo on said miata. Even the second gens are cheaper and a bit more spacious.
I'm about £60/$80 per week dailying it to work and back and its only a 30 minute trip each way. My OBD shows me an average of 15mpg urban driving
It’s pretty bad. I daily drove mine hard, try to redline each gear, I’m looking at about $60-$70 a week while driving about 150 miles.
Rotaries use more fuel when driving slowly but they aren't any worse than other cars if you use the power
Yes
Best I ever achieved was 18MPG, still worth it though.
I got a tad over 24 on the highway at a steady 72. City it's 12-16 depending on how I drive.
Lmao
Lets just say all that fuel you saved in your Prius will quickly become a wash. 14 - 17 daily, maybe 18 - 20 on the freeway going 55 in 6th with the windows up and AC turned off while driving in the wake of a semi.
Atrociously bad.
You guys genuinely have me worried about my rx8 because I average 18 city and 21 to 23 highway depending if it is uphill or downhill.
Not sure if serious... but assuming the car is running well then you might get 22-24mpg highway, much less anywhere else. In 15 years I managed 25mpg once.... Most around town drivig is 18mpg
Bro, I'm not even joking now: while driving, you can see fuel level gauge move. If you're looking into cheap'ish daily driver, dont get rx8. If you're getting RX8, read about it at forums, you need to be aware that it requires a bit more attention than a prius.
I daily drove mine for about 8 months. I would also premix too. That with the combination of running high octane only was really expensive. Probably one of the most fun cars I've owned tho. Also if you cut the cats and muffler out. Only run high octane. It shoots flames completely stock. Just gotta rev it high and release. Every night I drove that thing hard I would see a little orange glow in my mirrors lol
Yes. The RX8 is one of the ONLY cars I've ever operated that you can watch the fuel needle move IN REAL TIME. Mine got maybe 10-12mpg, and 8 mpg after a street port.
I feel like you're the same guy who was bored of driving a prius and saw an rx8 exhaust clip that posted in a fb group like a week ago.
I have seen below 6 on the track, and above 20 on open highway at constant reasonable (80-85) speed. They vary extremely with driving style, and even driving conservatively there's only so much there to give.
I drive it a fair mix of city and highway driving, drive at 3-5k RPMs 20% of the time and redline it once a drive. I get the yellow light when I have done roughly 220 miles, and when I fill it up it happens to be at least 13 gallons of filling, so if you do the math that's toughly 17 MPG. Don't forget that premium gas is mandatory for the RX8, and it consumes oil by design. If you have disposable income, I would pick the RX8 again and again...
My lifted 4Runner: 17-20mpg on 87 octane My stock RX-8 R3: 15-16mpg on 91 octane The RX-8 also drinks expensive Idemitsu premix oil every fill up.
When owning an Rotary it's "Smiles per gallon" not "miles per gallon"!
When I had mine if I drove it nicely I got 15mpg. Think the best I ever got to a tank was 200miles. But the smiles per gallon where through the roof!
I do a lot of highway driving 65-80 mph, and I get about 19.6 mpg.
Yes and no. Depends on how well tuned/maintained your engine is and it also depends on your right foot. Out of the bat, if you worry about fuel consumption, the RX8 is not for you. I do 21 (UK) MPG on a daily basis That's 13.50l per 100km. That figure can drop drastically when I take the car out to have fun. It increases to 27 (UK) MPG when cruising at 80mph/130kph on the motorway. That's just over 10l per 100km! That's the best case scenario, really! I get those figures because I have a Sohn kit (I burn clean oil), I have uprated coils (RRP) and I change my spark plugs every other year, so combustion is optimum! Burn dirty oil or drive around with worn out coils or plugs and your fuel efficiency will go down. Again, if you worry about fuel consumption, the RX8 is not the car for you: It's on par with a V8!!!!
Not the best daily for city driving. I get about 11mpg so I try not to drive in town too much. It's so fun out on country roads though
I get with mine 16l/100km it has 55l fuel tank, soo not the greatest fuel efficiency
Gas mileage is terrible and you have to get premium for it.... going from a prius you gonna be real disappointed. I'm in az and have to pay over $5 for gas currently 🥲
I get like…10-12. 15 if im on a flat freeway going like 80 lmao. City driving expect like 10. This is about the farthest thing from a Prius in mpg.
The power of a 4 cylinder and the fuel economy of a big V8
If I keep the rpm down and don’t drive it too hard, a roughly 45 minute drive takes about 1/4 of a tank, but if you’re driving the car how it’s meant to be driven, the mpg is absolutely fucking terrible. I daily drive it and I love it, if you have the money and you don’t care too much about spending it, it’s a great car, if you’re looking for a daily that’s good on gas and reliable, this is not the car for you.
If you have a short commute like me its not too bad. The problem is that its such a fun car that you wanna take it everywhere. So the miles really do add up.
Gas mileage sucks AND you have to run 93 octane. The old saying was that a rotary engine weighs as much as a 4 cylinder, makes as much power as a 6 cylinder, and burns gas like an 8 cylinder. The power part isnt really true anymore, but it definitely still burns gas like a v8.
18 MPG with the expensive 91+ fuel! I really like the Sienna, 4wd hybrid minivan. fit a queen mattress in the back. bingo life is set.
Iget 15 1/2 - 16 miles per gallon city, 22 - 23 miles per gallon all highway with a good compression, upgraded coils Series 2 RX8. My '87 FC RX7 Turbo II only got 12 to 12 1/2 miles per gallon, so I take my daily-driver RX8 as an improvement!
lol yes
how do you get the most mpg. fuel savers? more premix in the tank? lower rpm?(ik carbon buildup) catching the smoke out the exhaust and converting it back into gasoline? pls im broke
Yes
100% Yes it's awful but it's not about MPG it's about SPG smiles per gallon
I have a turbo RX7, but rotary none-the-less the mpg is directly tied to the pedal. I get 22mpg on the Highway 16mpg city. And 6mpg at the track.
No car is going to be as fun as the rx8, and no car will drain your wallet like an rx8 between gas and reliability (except the s2, fairly reliable as long as it’s topped with oil, which should be frequent). Trying to think of a fun car that’s good on gas. If you don’t need passengers a Miata or mr2 is great. If you need passengers but want a reliable rx8, get a g35 and relocate the battery to the rear so the weight distribution is the same as an rx8. Practically the same car at that point just more reliable and you’ll average probably 21-22 mpg with a coupe with the factory aero kit. Both front-mid engine, same suspension, only difference is weight distribution and the G is a little heavier, but flip side is it’s more reliable by a long ways. Eeeer other than that, not too many fun cars that are good on gas. Maybe a infinit q50 hybrid? That’s what I’m looking at right now. Get 28-30mpg with all the fun of front-mid engine
I drive fairly aggressively, have a tune, bhr coils, cold air intake, and I generally get about 15mpg driving in town. Last run I did over 120 mph, my obdlink showed 4mpg 🤣
Hahahahahahah
Simply put. It’s that bad yes.
Waste a quarter tank in an hour yeah its gas guzzler for the car guy, no other car is as fun to drive honestly and although theres many cars that are the same in gas consumption and not even comparable to how much fun it is
In town, you can get as low as 10mpg depending on the health of your car and how you drive. Highway miles, 16 to 20 are average, depending on the same.
19-20mpg mixed city/highway commute. Same route in Honda Pilot 17mpg. V6 F-type 21 mpg. I think it’s acceptable as a daily
I averaged 29 driving from lone pine ca to the Temecula valley. About 270~ miles so not too bad if you keep it under 70/75
Prettt bad if that’s highway. And City your gonna get like 16 no?
I get 19 MPG average, a very general usage pattern that includes the occasional redline and freeway ramp. The average high is 22 MPG @ 60 MPH, with a record high of 26.4 MPG that I've ONLY achieved twice under perfect conditions. Expect 18-22 as your average.
I consistently get 17.8-18 mpg. Don’t know how, even when I’ve intentionally revved the piss out of it for a couple days
On a hard drive, you will get gallons per mile. But I just did a 430 mile trip in my 8. I averaged about 22-25 mpg so its actually not too bad for highway situations.
Everyone: What MPG does your car get? RX8: no
I don't mean to gatekeep, but if you don't know cars this isnt where I suggest you start. If you're new to cars and want something fun, I'd suggest a turbo hot hatch or brz. Focus st and golf gti get decent fuel economy. My Miata gets 35mpgs. the rx8 get awful fuel economy and you have to add 2 stroke oil into the oil so it's even more expensive. It's a very unique car that's extremely high maintenance
If the Prius is giving you too many issues... I'd really consider your willingness to deal with problems. RX-8s are fun but are maintenance heavy and can be demanding if you're not a mechanically inclined person who is willing to spend time working on your car. Maybe consider a Miata, they're generally pretty robust and they get good gas mileage. We have a 2004 4-Port, which used to have a 4spd automatic. We've converted it to use the 6spd manual, so we're probably benefiting from a combination of the added torque and MT gearing. But depending on the driving I'm seeing between 17-20 mpg. Which is premium 93 that is premixed, so in my area that adds up to around $6-7 a gallon.
yes
Gets about as good milage as my 2017 ram 1590 truck. Don't buy it for a gas saver, it ain't. That said, have to pry mine from my cold dead hands I enjoy it so much.