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-   -   My best mpg ever (https://www.rx8club.com/rx-8-discussion-3/my-best-mpg-ever-178900/)

dmorales 07-22-2009 02:11 PM

My best mpg ever
 
thought this might be interesting to yall.

I got my best mpg ever yesterday. 22 mpg all highway. with 3 passengers and a load in the trunk. weird.

got my best mpg ever with almost 103,000 miles on the car!
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Spinning Sushi 07-22-2009 02:15 PM

I got 24.5 MPG with 3 passenger traveling 248 miles all highway on Saturday. :)

carbonRX8 07-22-2009 02:18 PM

http://www.autobloggreen.com/2008/10...hon-in-the-uk/

At first glance, a Corvette may seem like an odd choice for a vehicle to enter into an event aimed at fuel economy. At second glance, and when one realizes that the Corvette in question is the Z06, which happens to be powered by a 7.0-liter V8 engine that offers up over 500-horsepower, the choice looks positively insane. Perhaps it isn't. Any car can be driven in an economical fashion, even one powered by an extremely large-displacement eight cylinder engine. It helps that the 'Vette has a six speed manual transmission and makes plenty of stump-pulling torque right off idle, so its driver can shift quickly at very low RPMs. When properly driven, the Z06 is actually capable of delivering rather good mileage. In fact, the Z06 won the annual Fleetworld/ALD Automotive MPG Marathon in the U.K. by averaging 30.96 mpg over the trip's two-day, 411-mile route. That mark represents an improvement of 61.26-percent over the Z06's official European combined mileage figures and is a new record for the MPG Marathon. Maybe the V8's got some legs left after all.

dmorales 07-22-2009 02:57 PM

Hey Hey guys, 22 is pretty good for a Rx-8.

I usually max out at 21 something mpg, but hit 22 mph exact on this last tank.

I would say it was more like 95% highway though..
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Shijin-Kun 07-22-2009 03:02 PM

ive gotten 23 mpg when i drove from houston to dallas non stop. I was amazed.

CyberPitz 07-22-2009 03:08 PM

I had 28 with one passenger and not too much baggage. Going 60 in 6th gear does wonders for your mileage. Nebraska roadways ftw.

Lots of Plattsmouth -> Valley trips.

dmorales 07-22-2009 03:09 PM


Originally Posted by CyberPitz (Post 3129858)
I had 28 with one passenger and not too much baggage. Going 60 in 6th gear does wonders for your mileage. Nebraska roadways ftw.

Lots of Plattsmouth -> Valley trips.

I bet it does! I'm not that patient though. :p:
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04RX8man 07-22-2009 04:56 PM

24.4 moving to fl last spring with car completely packed....haven't seen that since then....

Old Rotor 07-22-2009 05:44 PM

I drove 55 MPH with the trucks in the slow lane for over two hours by myself and got 29.5 mpg. It was very hard to do and took a lot of patients and I probably wont do again. Thats an 04' A/T.

dondo 07-22-2009 05:47 PM

i just got my best ever this week as well. 21mpg including a mountain pass. ;)

J.Cab 07-22-2009 05:48 PM

Yeah I got 11 mph through my whole tank of gas...






















Boosting all the way home for 115 miles. :mdrmed:

dondo 07-22-2009 05:52 PM

^ booooooooo

04RX8man 07-22-2009 06:11 PM

^+1 on the booooooo.....I want boost..ahhhh.....NOOOOOOOWWWWWWW!

Charles R. Hill 07-22-2009 06:14 PM


Originally Posted by carbonRX8 (Post 3129786)
At first glance, a Corvette may seem like an odd choice for a vehicle to enter into an event aimed at fuel economy. At second glance, and when one realizes that the Corvette in question is the Z06, which happens to be powered by a 7.0-liter V8 engine that offers up over 500-horsepower, the choice looks positively insane. It helps that the 'Vette has a six speed manual transmission and makes plenty of stump-pulling torque right off idle, so its driver can shift quickly at very low RPMs. When properly driven, the Z06 is actually capable of delivering rather good mileage. Maybe the V8's got some legs left after all.

The real key is to not make sudden changes in throttle pedal position and to keep the intake manifold vacuum as high and as steady as possible. Using a vacuum gauge on the intake manifold helps the driver to do this.

JinDesu 07-22-2009 06:23 PM


Originally Posted by Charles R. Hill (Post 3130140)
The real key is to not make sudden changes in throttle pedal position and to keep the intake manifold vacuum as high and as steady as possible. Using a vacuum gauge on the intake manifold helps the driver to do this.

Ah, I suppose now I know why my mileage is bad... I tend to try to floor the accelerator when I notice space in front of me.

04RX8man 07-22-2009 06:23 PM

^if i had a gauge hooked to the intake manifold...it would constantly be in positive pressure(of course I'd have to be FI for that to happen first) but for most ppl staying out of the throttle in this car is VERY hard! haha

Charles R. Hill 07-22-2009 06:24 PM


Originally Posted by 04RX8man (Post 3130159)
..... (of course I'd have to be FI for that to happen first)......

Are you sure about that? ;)

RX26b 07-22-2009 06:28 PM


Originally Posted by Old Rotor (Post 3130095)
...It was very hard to do and took a lot of patients and I probably wont do again.

It's nice to see you on the board, doctor. :D:

dondo 07-22-2009 07:12 PM

^lol

DarkBrew 07-22-2009 07:40 PM

I got 9.9 litres per 100km last summer - 95% hwy

545km on 53.9 litres

338 miles on 14.25 US gallons

23.7 MPG

ZachLegend 07-22-2009 11:55 PM

Got 24mph once using mostly highway, woo woo!

CyberPitz 07-23-2009 10:45 AM


Originally Posted by ZachLegend (Post 3130807)
Got 24mph once using mostly highway, woo woo!

That's a slow highway! :lol2:

robrecht 07-24-2009 07:34 AM

With 32k miles on my stock coils, I can still get 26-28 mpg using cruise control at 65 mph if I can stand the boredom and avoid the ethanol. Someone on here got 29 mpg once.

Shijin-Kun 07-24-2009 07:43 AM

29!!!! *head explodes*

Old Rotor 07-24-2009 11:33 AM


Originally Posted by Old Rotor (Post 3130095)
I drove 55 MPH with the trucks in the slow lane for over two hours by myself and got 29.5 mpg. It was very hard to do and took a lot of patients and I probably wont do again. Thats an 04' A/T.

Yes it was me, not fun....


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