itsallaboutgary
01-16-2004, 05:21 PM
well this is what i got...70% highway going 80-90...and 30% city driving on a full tank. is this what everyone is getting around? ohh yeah, this is with dsc and tcs on. =) everyone reply. need some feedback!
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View Full Version : Everyone! How Many Miles Can You Go On A Full Tank?!? itsallaboutgary 01-16-2004, 05:21 PM well this is what i got...70% highway going 80-90...and 30% city driving on a full tank. is this what everyone is getting around? ohh yeah, this is with dsc and tcs on. =) everyone reply. need some feedback! Jeff_pap31s 01-16-2004, 05:40 PM I get about 200 in the city, but I have a lead foot!!!! allstate 01-16-2004, 05:42 PM I reguarly get 250-260 miles per tank. 70% city/ 30% highway. I use 93 octane The most mileage I've ever achieved on a tank of gas was 285. It was on a trip from Dallas to Houston Tamas 01-16-2004, 05:42 PM I get about 260 with similar conditions. zthang 01-16-2004, 05:48 PM How many gallons is the RX8 tank? I've always wondered. i3man 01-16-2004, 05:54 PM I've gone 240 miles and filled in 12.994 gallons and the gas light came on about 5 miles before I filled up. That means I still had about 3 gallons in the tank and could have gone another 25-30 miles comfortably. But I don't want to add my name to the list of 8 owners that have run out of gas so I normally try to fill up after between 200 - 220 miles. Jeff_pap31s 01-16-2004, 06:27 PM your pushin it at 250. ptiemann 01-16-2004, 06:32 PM My yellow light came on last week at 282 miles, I was surprised, because I had not driven it carefully with the intention to get a high mpg. I calculated 20.5 mpg for that tank. Since I've had 23.15 as my best number so far, I'd say it is definitely possible to get over 300 miles with one tank. 282 * 23.15 / 20.5 = 318 miles .. and that's when the light has *just* come on. 2 to 3 gallons left meaning another 50 miles.. --> 318 + 50 = 368 miles. I drive 95% highway and fill up as soon as the yellow light comes on. KFence27 01-16-2004, 06:36 PM Drove to Vermont last weekend from NJ, got 250 at 100% highway, my baby likes to binge drink gasoline like its FRAT BRO. Speed-ER doc 01-16-2004, 07:22 PM Usual pattern = 220 miles, 13 gallons, before the light comes on. Farthest on a tank was 260 miles, 14 gallons (road trip). Light always comes on at 13.5 gallons for me. allstate 01-16-2004, 07:42 PM Everyone don't forget to note what octane you are using MEGAREDS 01-16-2004, 07:51 PM Got 235 miles on one tank... once -- but I've yet to do a full highway tank. Zeltar 01-16-2004, 07:59 PM Okay, so the gas tank holds 15.9 gallons. How much of that is actually usable fuel? I don't think I've ever been able to squeeze more than 13.9 gallons into the tank. And, I'd swear I was on fumes. Has anybody actually used that last drop? And, if you happen to run out of fuel in front of the gas station, how much fuel did you squeeze in? loco4rx8 01-16-2004, 08:12 PM Originally posted by Zeltar How much of that is actually usable fuel? Has anybody actually used that last drop? And, if you happen to run out of fuel in front of the gas station, how much fuel did you squeeze in? Yes, I've done it. 15.3 gallons usable fuel in the tank. As for how far can I go on a tank -- my mileage varies, but checking my log I've kept since day 1, I see fillups at 351 miles (best), 332.9 miles (when I ran out of gas), and 320 miles. Usually, I fill up at around 13-13.5 gallons, and based on my typical 22 mpg, that would put a typical tank range for me at 336.6 (15.3 X 22). I use 93 octane, and my normal commute is 85% highway. Edited to add: DSC is always on. (And to clarify a sentence above.) zoom44 01-16-2004, 08:37 PM i have pushed it to over 300 miles on 3-4 tanks in a row on my trip thru cali (i know i know -don't even speak of miles per tank yada yada). one of those thanks i actually put in 15 gallons to the first stop of the pump. needless to say i was sweating the last couple of miles and my wife was very upset that i almost stranded us. it was 320 and a little more if i remember correctly. the first tank out on that trip i went from portland oregon alll the way into cali to the first gas station i found and that was like 310 miles for 14.? gallons itsallaboutgary 01-16-2004, 08:43 PM for those of you who are getting over 250 + miles...do you turn OFF your TCS and DSC?? Doctorr 01-16-2004, 08:53 PM 240 miles from full to yellow light. Doesn't seem to be affected by my speed, and no, DSC & TCS stay on. . . . doc sferrett 01-16-2004, 11:04 PM My warning light comes on generally around 220-230. This last tank it was 240-ish when the light came on. I generally dont muck with the DSC and just leave it on. I have got as low as sub-15mpg over a 150 mile period, but that was some very aggressive driving (the last SD rx run a couple of weekends ago) i3man 01-16-2004, 11:07 PM Can someone tell us exactly how far you can go after the yellow light comes on before you run out of gas :p MEGAREDS 01-16-2004, 11:11 PM Originally posted by i3man Can someone tell us exactly how far you can go after the yellow light comes on before you run out of gas :p See this (http://www.rx8club.com/showthread.php?s=&threadid=15815) thread. HiX8 says 29 miles. i3man 01-16-2004, 11:25 PM Thanks, that is good to know. Where I live I can't drive 29 miles in any direction without falling into the pacific ocean :p I think I'd be better off with a life raft in my trunk than a extra gallon of gas :p Squidward 01-17-2004, 12:59 PM I've got 10,000 miles on my car. see my crappy mpg log. 8_wannabe 01-17-2004, 01:09 PM Originally posted by Doctorr Doesn't seem to be affected by my speed, and no, DSC & TCS stay on. Agree, speed, DSC, octane, driving style (within limits) don't seem to affect mileage. Stop and go traffic does, so if you're doing city/highway or stop-n-go freeway you'll get less mileage than hiway road trip of a few hundred miles. My warning light comes on before 220 miles, and I always fill up by 220. I religiously get 16.5-16.8 mpg regardless of octane, DSC/TCS, or driving like grannie. EXCEPTION: If you followed my long saga here (http://www.rx8club.com/showthread.php?s=&threadid=18424) I've filled up and calibrated twice since getting my car back. First tank, I drove to LA and back and got like 19.1 mpg, a near-record for me. Second tank was all local driving and got 17.1, which is extraordinary. This is on 87 octane. Nothing I've ever done has ever caused me to waiver from the 16.x mpg until my last two tanks. Two things happened: All the maintence done in the thread above which included replacing the clutch and associated parts. Plus I went over 10K miles almost simultaneously. Maybe my luck is about to change... takahashi 01-17-2004, 05:16 PM I can go just sky of 600km in a full tank in the freeway. More if turn off the DSC JeRKy 8 Owner 01-17-2004, 05:36 PM I do 100% city driving all the time and I get 230 - 240 miles a tank. Thats w/drivingdown allthe way from full to the very last E mark after the light has come on. I usually get the lightbetween 205 - 215. When thegauge is on the 3/4tank mark I have between 50 - 60 miles on the car. The onlyway I can get 250 - 260 out of a tank in my Rx8 isif I do at least 20% highwaydriving. My car has ~5500 miles on it now. The EPA should have listed 16 for city mpg becausethats the best I can get even if I keep the car under 50 from full to low. arobel 01-17-2004, 06:05 PM I just 12.5 mpg all city. Usually I get 14 city and 17 maybe 18 highway. I'm think I am going to have it checked out. Is anyone else getting this bad a mileage? zoom44 01-17-2004, 06:14 PM Originally posted by jdaled Do you still have your original window sticker?? If so, go read it... :eek: "Actual Mileage will vary with options, driving conditions, driving habits and vehicle's condition. Results reported to EPA indicate that the majority of vehicles with these estimates will achieve between 15 and 21 mpg in the city, and between 20 and 28 mpg on the highway." It doesn't guarantee any particular mileage, and only goes so far as to say the majority will be in that range. Slightly low MPG is not a lemon law problem. And yes, 2mpg below the majority range is slight. somone was saying somethng about getting their 8 taken back under lemon law awhile ago because of low mpg and this was posted. if anyone else still has their window sticker go read it. JeRKy 8 Owner 01-18-2004, 12:03 AM Cant takeit back for that b/c you do get 15 mpg sometimes. They justbarely made it RX-jimenez 01-18-2004, 01:23 AM mine is not consuming is sucking gas..:) but i still Love it..! MazdaManiac 01-18-2004, 02:38 AM My warning light comes on at 200 miles. It runs out of gas at 227 miles. My RX-8 consumes gas so fast, I can actually see the needle move. I was doing some 3rd gear tuning pulls for the E-Manage on Thursday night and after each one (about 20 seconds at WOT in 3rd), the gauge was a little lower. When I was done for that session, I had driven 35 miles and a full tank had dropped to just above 3/4. I'm at 3890 miles and I will fill it tomorrow with tank number 22. That works out to 200 per tank, 13.8 gallons per fill. 14 MPG. Tank number 5 or 6 was highway ONLY and it made absolutely no difference. i3man 01-18-2004, 02:55 AM Originally posted by Maniac My RX-8 consumes gas so fast, I can actually see the needle move. I said the exact same thing to a friend and he said I was crazy but I swear it does move when you're watching it. TheDosDog 01-18-2004, 10:46 AM I routinely get 270 per tank (mostly highway since this is my commute car). But, driving hard on a windy grade I've used just shy of a quarter tank in just over 40 miles. I think the EPA numbers are probably best case for my 8. If I get into it, it will be less (sometimes much less). Kinda what I expected. JimW 01-18-2004, 02:51 PM I noticed MPG going down slightly, but I think it's because I'm more comfortable driving it harder. My last reading was 14 MPG. I drive in strictly stop and go city traffic. I average between 14 and 19 MPG city, dependent upon my driving habits. I have to say I didn't buy the car for economy but, rather performance and handling. I'll take this car any day over a car that's less exciting to drive and offers 10 MPG more! On the other hand it seems that Mazda slighted us twice by programing the car to run rich for EPA concerns and as a result gives us less power and worse fuel economy. Mazda would do right by offering us a high flow high heat catalytic converter,or offer a new cat periodically untill warranty ends and reflashing back to it's original parameters. This would make the EPA and consumers very happy, and one, in which from a consumer standpoint, we earnestly deserve! winter 01-19-2004, 03:47 AM I don't measure by tank (I find per gallon to be more accurate), but here are my early results: First tank (Under 300 miles) 12.8 Second Tank (Highway Driving) 16.5 Third Tank (Spirited Driving up & down mountains) 16.9 With any luck the trend will continue. I was very surprised to see 16.9, considering I was in the mid to upper RPM range quite often. T.H 01-19-2004, 07:48 AM I find that 3 tanks in I am doing about 220 per tank. The problem I find is that at my regular motorway speed (92 Mph) the revs are running at 4.5k so I guess I am never going to get great milage. Just to make any americans feel better about themselves it cost me £43 ($76) per refill. Still I didn't buy it for fuel economy.. MikeDemo 01-19-2004, 07:57 AM I've been keeping track of my mpg and i'm getting around 15 to 16 miles per gallon. I've got about 8000 on my 8 and everytime my light comes on around 200 miles when i'm driving back and forth to work but when i drive back and forth to MD the best I got was about 240 miles total. But even though the MPG suck I still love the car. pullinteef 01-19-2004, 08:42 AM I normally get 210-220 mostly city, filling up what I guess is right before the light comes on. Though on my trip from Florida to Buffalo I would consistently get 305-315 (usually 80 miles per 1/4 tank mark) keeping the cruise at around 80-85. I've heard that cruise control can help mileage a lot, but I have no sources to back this up. zoom44 01-20-2004, 01:02 PM Well on this last tank i really let it rip. 1st 2nd and 3rd gear redline shifts when ever possible. no running in 6th gear, usually staying in 4th even at highway speeds just to play with the power available above 5 k.a few times running in 5th on the highway at 65-70 mph. 173 miles on 14.18 gallons for my lowest mileage ever on this car- 12.2 mpg!! hehehe. it was alot of fun and worth every penny :) so on this tank i am going to shift no later than 3500 in each gear and try to get to 6th as soon as possible every time,so at about 45 mph and above. ill let you know what i get this time. Shooter 01-20-2004, 02:08 PM i noticed that my mileage stinks during the first half of the tank of a gas ie from Full to 1/2 i can literally see the needle move and my mileage is awful. Then from 1/2 to E i dont see as dramatic a move in the needle and i seem to get more mileage out of that portion of the tank. I dont drive any differently throughout the tank. i also notice that when i am at Full I get a pretty good move of the needle from the F indicator within a 10-15 miles or so. Most all of my driving is city driving. Is it possible that the measuring device for the fuel is not entirely accurate? Anyone else notice this? MazdaManiac 01-20-2004, 02:51 PM Originally posted by Shooter Is it possible that the measuring device for the fuel is not entirely accurate? Anyone else notice this? Well, the fuel level sender on every vehicle is often not accurate over the full load of the tank. However, it is usually backwards from the way that you are relating the experience you are having with your gauge. Typically, the first half goes slowly and the second half much more quickly. Mine is similar to yours in that the first 15 miles or so makes the gauge move about 1/8 right away. The movement is perceptible if you watch the gauge long enough instead of the road. Another 25 miles and it is 3/4 full. It takes about 100 miles to get all the way to 1/2 and the light comes on in another 100 miles. The car then runs out of gas 25 - 30 miles later. RobnEdie 01-20-2004, 06:40 PM We, too, have noticed the action of the fuel gauge is not linear, and that it drops more quickly during the first several miles when compared to those nearer the end. We can live with that, but it was a bit scary when we didn't know what fuel economy to expect. Reports of 13 and 15 mpg had us worried. We can happily report, after 1,000 primarily city miles, that we have averaged 19.9 miles per (U.S.) gallon. Sin 01-20-2004, 10:23 PM 250 Rotary Titus 01-21-2004, 12:03 AM 260 bobclevenger 01-21-2004, 04:40 AM Originally posted by zoom44 i went from portland oregon alll the way into cali to the first gas station i found and that was like 310 miles for 14.? gallons You should have filled up in Ashland -- gas always seems to be cheaper in OR than in CA, even though it's not self-serve. Go figure? But it's good to hear that a 300 mile range is not out of the question, since that is usually where I like to stop (300 miles north of home) on that trip. Chrisbert 01-21-2004, 08:00 AM I'm sitting very low now at 240. Gotta fill her up after work. D MENAC 7 01-21-2004, 01:14 PM Picked my RX-8 up on the 10th of January, drove it in city only, it had 800 miles on it when I got it. Went 210 miles, was running on fumes cause I put 15.14 US gals in the tank. All city, almost all fun, had to see how it accelerated when possible. MT, DSC on assumed premium gas was used by dealer and they filled it up (Showed full at drive off). I knew the mileage would suck this tank, expected it to and didn't care that it did. 13.9 miles/Gal that tank. Took it out for a road trip with 90% highway, averaging 72 MPH in 6th, filled up with 12.3 gals and went 215 miles to get 17.5 miles to the gallon. Not that I am expecting this to be economical on fuel but I expected at least 20 MPG on the highway. My 6 cyl. Dakota averaged 14 city 17 highway so it's better mileage but a whole helluva lot more of an enjoyable ride. Our "pracical" vehicle is a Honda CRV and it averages around 20 overall with little more on highway only. I didn't get this car for fuel economy I got for my Need to Speed, or at least to launch fast! So, all in all, I am getting about what I expected. zoom44 01-21-2004, 01:52 PM Originally posted by bobclevenger You should have filled up in Ashland -- gas always seems to be cheaper in OR than in CA, even though it's not self-serve. Go figure? But it's good to hear that a 300 mile range is not out of the question, since that is usually where I like to stop (300 miles north of home) on that trip. yeah you are right ashland would have been cheaper but at that point i still hada bunch of gas in the tank and i just had to see if i could make it over into cali and over the 300 mile mark :D my wife was bugging me about it tho cause she could see when the light came on and we were just outside of cali with a ways to go before that gas station. im just happy we made it:) cruzdreamer 01-21-2004, 04:28 PM 212-220 miles on a tank for me. mazdaman 01-22-2004, 06:26 PM I have gotton 250 at the most Wankeler 01-22-2004, 09:18 PM I never go more than 5 miles past the gas light coming on. It's usually around 13.4 gals to fill and my trip meter is around 180. I must really have a lead foot... oh well... it's all good. Zoom Zoom Zoooooooooooom! Oh... 91 octane Mobil/Shell/Sunoco swoope 01-23-2004, 12:09 AM wow, 260 on my first tank. 70%hway. 30% exporing traction control. and somewhat aggressive driving. almost now city. filled up with 14.15 gals of gas. after on yellow light for 23 miles. last i heard the tank is 15.9?????? worked out you about 18.5mpg. not happy but better that i had hoped. beers swoope 01-23-2004, 12:10 AM wow, 260 on my first tank. 70%hway. 30% exporing traction control. and somewhat aggressive driving. almost no city. filled up with 14.15 gals of gas. after on yellow light for 23 miles. last i heard the tank is 15.9?????? worked out you about 18.5mpg. not happy but better that i had hoped. beers sritter 01-23-2004, 11:07 AM I get 200. Wish it had a bigger tank so it got at least 300 before needing to be filled up. Reeko 01-23-2004, 11:33 AM I ussually get the light at 190-200 miles. When I fill, it is normally at 200 and 13.5 gallons. I have only once gotten 220 out of a tank. But, I am all backcountry road driving. Lots of accelleration and starts/stops. Plus, it is about an 8 mile commute to work, so most of the driving is while the car is warming up. (I would consider country roads more like city driving. No sitting at the light, but lots of stops/starts at intersections.) Ophitoxaemia 01-23-2004, 06:24 PM ive been getting the light about about 240-250 in mixed city/freeway driving, took it to 290 on a tank once on a long drive. this is driving under 80 usually and not too many full throttle accelerations. james Speedofheat 01-24-2004, 02:29 PM My dealer in AZ is telling me that the engine will run better on 89. Anyone else been told this? I am on my second tank and the soot out of the tail pipes is almost gone. Plus it seems to run the same or better. auzoom 06-09-2005, 06:39 AM My dealer in AZ is telling me that the engine will run better on 89. Anyone else been told this? I am on my second tank and the soot out of the tail pipes is almost gone. Plus it seems to run the same or better. The Rotary engine injects oil in with the fuel (probably a better technical explaination that mine) to lubricate the seals. In doing this, the octane of the fuel is reduced. I am unsure if the drop is linear, ie 98RON fuel will drop to say 88 and therefore 89 will drop 79. That said, I have just run my last 2 tanks on 91RON Unleaded (the lowest we go) after running on nothing but 98 since I got my car in Feb. I have to say that the car feels like it runs better and is more responsive. I am driving it harder and my fuel economy is no worse. Next tank will be gently driving to see if it does get better. I have also been driving with DSC totally off if the roads are dry. I average 340 Kms (200 Miles) per tank where I fill up with around 55 litres (12.1 Gallons). Regards Andrew Feras 06-09-2005, 08:19 AM i usually get 200-240 in mixedusually aggressive driving. On long trips though of less than 300 miles i will get 260 to the tank. But for some reason on trips in the 600-1000 mile range the second tank ends up lasting 320-340 which was nearly 25mpg all at 75mph+...wierd rx8wannahave 06-09-2005, 08:47 AM WOW...talk about bringing a thread from the dead...lol I get 250 miles with all city driving with no problem using about 13.x gallons. I've never used up more than 13.7 gallons in my 8. I also have never taken my 8 for a trip (long periods of time on the highway) either so 260+ is the max I've gotten on it so far with no less than 249 miles on it with all city driving. I probably average 252 miles per fill up @ 13.x gallons used. Mugatu 06-09-2005, 08:54 AM The Rotary engine injects oil in with the fuel (probably a better technical explaination that mine) to lubricate the seals. In doing this, the octane of the fuel is reduced. I am unsure if the drop is linear, ie 98RON fuel will drop to say 88 and therefore 89 will drop 79. That said, I have just run my last 2 tanks on 91RON Unleaded (the lowest we go) after running on nothing but 98 since I got my car in Feb. I have to say that the car feels like it runs better and is more responsive. I am driving it harder and my fuel economy is no worse. Next tank will be gently driving to see if it does get better. I have also been driving with DSC totally off if the roads are dry. I average 340 Kms (200 Miles) per tank where I fill up with around 55 litres (12.1 Gallons). Regards Andrew You DO know you're replying to a post that is a year and half old, right? :confused: rx8wannahave 06-09-2005, 08:59 AM LOL...I did not know until I saw Speed-er DOC reply about what he got, and then I decided to look at the dates....lol CrowBoy66 06-09-2005, 09:01 AM I use 91 octane and it never fails 220 miles no matter how I drive. I'd say I drive 60% highway 40% city. This is true before and after mods(RB Exhaust, RB Intake) Glyphon 06-09-2005, 09:04 AM when i filled up yesterday, i got 240 miles out of 12.5 gallons. guestimating 50/50 city/highway. RotaryNoob 06-09-2005, 09:11 AM 180 per tank average. On a road trip the best I got was 240. As soon as its warm I redline up to the speed limit 80% of the time. 91 Octane scarroll 06-09-2005, 09:12 AM I use 89-93 ocatane I drive 60% city 40% highway. I never let the rpms get below 3400 unless at idle. Shift at or near redline 80% of the time. The low fuel light comes on at 255 miles just about every time. and if I fill up right then it takes 13.2 gallons. I have gone 290 on a tank without running out of fuel. Could tires be a factor? I drive my friends with stock potenzas and I can't get it 220 before the light comes on. But mine came stock with Dunlops. Thoughts? Elara 06-09-2005, 09:16 AM I use 89-93 ocatane Could tires be a factor? I drive my friends with stock potenzas and I can't get it 220 before the light comes on. But mine came stock with Dunlops. Thoughts? Nope, not the tires, because I drive a lot like you do, and I had the stock potenzas (now pirellis). No change in my mileage. Usually between 250-270 per tank, about 12.9 to 13.4 gallons per fillup. jangle 06-09-2005, 10:12 AM 18-20 MPG. I drive mostly highway. elysium19 06-09-2005, 11:06 AM Huge change from the infiniti Q45 i used to drive....22.5 gallon tank, about the same milage....could get 420 miles on a tank! (though it cost $45 to fill her up) for the record, I've been getting 16/20mpg in city/hwy. usually 89 octane. RotaryIT 06-09-2005, 12:17 PM The usually get about 200 per tank when driving 70/30 city/highway...93 octane. My best, was on a road trip to Kentucky. I stopped to buyu gas after 175 miles....could not pass it up...it was 93 octane for $1.98 in Ohio. (Michigan was $2.42). It took 6.5 gallons to fill back up....which equates to 26.9 mpg. The conditions were nearly perfect...about 65-70 degrees, low humidity, no rain, and traffic was smooth...I probably averaged 75mpg for the 175 miles. I probably reached 95-100 for a few moments here and there, and dropped to as low as 65 for about the same. I was very impressed by this...I was on N flash at the time. On P flash, I had 23 mpg on the same trip, but my average driving has bumped up to about 18mpg. Getting about 230-240 per tank now. zoom44 06-09-2005, 12:24 PM i can get 230-240 around town but usually get 200-220. i have had over 340 miles on 1 tank i think it was 342. with a little over 14 gallons refill for 23.99 mpg Str8cold 06-09-2005, 12:33 PM I have been getting approximately 250 miles before the low fuel light kicks on, running 93 Octane 60% city 40% highway driving. Averaging 19.23 MPG auzoom 06-09-2005, 05:06 PM You DO know you're replying to a post that is a year and half old, right? :confused: Nothing like bringing the past into the present. Just as current musicians :-P Seriously, it was late and I didnt notice. I tend not to care if its old...only if its relevant. Sorry everyone. Please stop responding to this thread as its totally inappropriate becuase its to old :D Just kidding! Regards Andrew BlueFrenzy 06-09-2005, 09:30 PM Rise From The Dead! RX8_Ownz 06-09-2005, 09:33 PM Around 240miles before the light comes on. (91 octane) redjetpack 06-09-2005, 09:42 PM ha! i had 300 when the fuel light came on! i rule the gas mileage thread! auzoom 06-10-2005, 01:29 AM So...seing as I dredged up the bad old days...coudl anyone make sense of my BS on the octane levels and so forth? Am I talking crap or not? Andrew RotaryIT 06-10-2005, 07:59 AM So...seing as I dredged up the bad old days...coudl anyone make sense of my BS on the octane levels and so forth? Am I talking crap or not? Andrew I have a feeling that octane levels have a greater effect when combined with temperature. I noticed that in the winter, my 8 performed better on 87 octane. In the summer, (and its been hot lately) I can't use 87 or it pings. I have to use 92/3. I am on my 4th tank since the "P flash", and I have gone 115 miles, and the "less than accurate" fuel guage is still above 1/2....in the past, I was lucky to reach 100 by 1/2. So, as the days go by...I'm getting happier. rx8wannahave 06-10-2005, 08:22 AM I just filled up this morning: 261.8 miles driven on 13.642 gallons = 19.19mpg (85/15 city/highway) I know I can't complain, very pleased! :D I can't wait to take a trip in the 8... jangle 06-10-2005, 08:37 AM I get 230-250 MPT. I average 18-22 MPG. Never use anything but 93 Octane. 80% highway, 20% city. As most of you are aware, the Rotary is a high-compression engine. I've talked to some experts about why we have to use 91 or higher Octane. The reason is the higher the Octane, the higher the internal engine temperature can get before the gas burns. The outside temperature has little to do with it unless you're in a traffic jam and it is very hot outside (no air flow forced into the 8). That is why you get the "pinging" at lower Octanes. The gas actually burns (or vaporizes) before its supposed to during the combustion cycle. This also causes a loss of power. Just thought I'd share because I had the same questions as some of you when I got my 8. For me, the additional cost for Premium is well worth the excitement of driving the 8! rx8wannahave 06-10-2005, 09:02 AM I wish I could get 91 (just cause it should be a little cheaper) but I too refuse to put anything other than 93 in my 8. Also, I pour gas about 2-3 times a month and at least one of those fill up's will be with Chevron 93 gas which has that Tech (fuel system cleaner) stuff which by experiance I've found to really do a good job. That way (because of traffic (well and too keep my rotary clean)) since I can't rev it to 9K daily "sometimes", the little Renesis will stay clean. Columbus 06-10-2005, 10:25 AM The best I've gotten was 300 miles before the fuel light came on and that was about 80% highway 20% city. 93 octance and I had the a/c on. monzter 06-10-2005, 08:30 PM 210-220 is the best i've ever gotten. 95/5 City/Hway I'm not even sure what version of the flash i'm on. Next time i'm at the dealer, I'm going to have them check for me. jbrasure 06-10-2005, 10:52 PM I do 95% highway driving, and I can go about 220 miles on 3/4 of a tank. Old Rotor 06-11-2005, 11:35 PM I just did a long road trip with the cruse set at 65mph. The fuel lite came on at 371 miles and it took 13.5 gallons. It's not easy to keep the revs down but just to see what it can do. I have a stock auto with 22k on it and run 87oct then 91oct back and forth. ElusiveFX 06-14-2005, 11:12 PM Hah, i'm lucky to get over 220 (city driving) out of a full tank... swoope 06-15-2005, 01:40 AM I just did a long road trip with the cruse set at 65mph. The fuel lite came on at 371 miles and it took 13.5 gallons. It's not easy to keep the revs down but just to see what it can do. I have a stock auto with 22k on it and run 87oct then 91oct back and forth. are you sure about these #s ???? that is over 27mpg. if so you win. the best i have done is 23 to 24 @< 72mph. i still average ~21mpg 15% city rest interstate. beers midlifer 06-15-2005, 07:07 AM My automatic just hit 2,000 miles and it seems like no matter how I drive it I get 19mpg. Can't complain, my truck gets 12 :( Bob MX6_2_RX8 06-15-2005, 07:57 AM I just did a long road trip with the cruse set at 65mph. The fuel lite came on at 371 miles and it took 13.5 gallons. It's not easy to keep the revs down but just to see what it can do. I have a stock auto with 22k on it and run 87oct then 91oct back and forth. Finally, we found the car that they used to get the window sticker MPG! You might want to get your car on a dyno, you probably have 250hp+ m2pro 06-15-2005, 10:33 AM At 250 miles on current tank, (give or take about 3 miles either way), and I still have a quarter tank left. I've been driving this tank about 85% on the interstate crusing at either 74 or 80...AC on. (WHO CAN DEAL WITH THE AC OFF IN ALABAMA?!) I usually get around 240ish... but on my last tank, I never once conserved. I floored it all around town and ended up at about 150 miles with slightly more than a quarter tank left when I refilled up. I'm used to a 98 Civic ex... I WAS used to flooring it and seeing the difference of maybe 10-20 miles in a tank for WAY less of a tank, and using 87 octane. Now, I'm used to filling up a 16 gallon on 93 octane and getting less miles to the tank considerably. It was sad when I first started... but you just have to accept it and move on and start enjoying the best looking car that ever existed. |