boowana,

How come you calcuated 21 mpg?

143.3 miles / 6.082 gallons = 23.56 mpg !

 

Simply put: They're not...

 

you are not too far off. The 2001 MIllenia lost 2mpg running the AC. If you round which is what they do, you got 24 + 2 would be 26.

 

I couldn't find this anywhere set in stone...... our tanks hold 15.9 gallons as stated in manual..... correct?

 

Correct.

 

I noticed something funny- though I am getting bad mileage 10 city and 16 -17 highway- there is not alot of black soot on my tailpipes- AFter 1200 miles just a bit on the bottom of the pipes.

ANy significance?

 

Let me get this straight... A Texan went to Oklahoma?

 

I guess Boo must be a Texas Democrat.

 

As Oct. 1 approaches, what is the consensus on the DSC full turnoff:

(1) -- boost HP?

(2) -- boost mileage?

Sounds like subjective yes on (1) and objective maybe on (2) (not enought data). Anyone else with data or conclusion?

 

no, just a Canadian (aka to Reps: 'liberal')

 

simple BOO! your calculation of your mileage was off and so was the person's who said they got 28. you got 23.5 mpg!congrats

 

Hi

This is an interesting thread. I've ordered my rx-8 but it won;t be here for 2 months.

Has anyone ever played Gran Turismo. You can turn off both DSC and TCS. IN this simulation that's over 1 year old there is significantly more power with the DSC off. With TCS off as well, the car becomes more uncontrollable.

I know it's not the real thing, however the engineers at Sony have it spot on I imagine.

 

I'm not sure about the gas mileage for the 8 but i'm getting ready to sell my miata to buy one and while i owned the car i noticed that if my tires were low that i would lose almost 5mpg. So you might want to check your tire pressure it's hard to tell if its low, i was driving around with 10psi in one tire, (there was a nail in it) and it took a few days to figure out what was wrong. Also i'm not sure who's wrong but mazda rates the gas tank in a miata as a 12.1gl tank, yet i've put as much as 13.2 gls in the car. So if someone has put more than 16gls in their car.....

For the hp, the same thing happened in 2001? 2002? (i think) with the miata, they advertized it at 155hp but as soon as it hit our shores it was changed to 142hp the same thing seems to be going on with the rx-8 now. It could just be some emissions control. Also of note; some of the prototype engines had problems with the aux ports opening causing the manuals to run on only 4 ports rather than 6. But from all i've read it seems that in the 1500-3000 mi range that most of the cars start to see an increase in power. My theory is that the ECU is protecting the engine through its break-in period by not allowing it to have full power and once thats done it could be opening things up.

One last this, it's rumored that most of the magazines and testers ended up with the lower powered engine because of the faulty ports, so check around.

 

That's an easy one to cover:
1) I personally check my tires at very fill.
2) USA models have low air pressure sensors in each wheel.

 

Thanks for the great thread.
My GT has just came back from the dealer with a faulty solenoid vacummun valve on the intake tube.Not sure the proper name for it...it opens the secondary intake tube after 4500rpm.
I have always said my gt really lacked in the upper RPM ranges..this has been the cause of it.
When the new part comes from japan i to will test your theory.

 

Just started trying this on my new tank of gas.

 

I have the base model with sport package, no traction control of any kind and my mileage sucks. Still love the car and wouldn't trade it for the world.

Most of my MPG entries to date are very similar to these.

Date Trip Gallons MPG Odomoter
1/31/2004 167.3 12.296 13.6 1051
2/8/2004 75.9 6.005 12.63 1324
2/10/2004 139 9.838 14.1 1463

 

That's horrible. Just filled up last night with 10.938 gal of 87 octane at 195.6 miles. 17.88 mpg with DSC/TCS on the whole time. With 3400 miles on the 8, my mpg has been roughly the same since day one.

 

I'm taking mine in next week to see if they will reflash the ecu, or do something to help. I'll let ya'll know how it goes.

 

If you have the Sport Package, you have DSC/TC.

Only the base cars do not have it.

 

Sorry bout that, I have the base model. No foglamps or any extras.

 

No biggie.

While you're at it, how do you like the stock halogen headlights?

The SP is one I wanted, but really only for the HIDs.

Thanks,

 

Well definatley a big improvement over my 94 miata's head lights (barn doors). But if I could just pick one option that i didn't get it would be the xenon's....don't really care to have any of the other options. Had leather in the miata and decided I din't want it in my next sports car. Everything else is just weight to me. I'm use to driving carefully (granny-like) in the rain and this car handles so much better in foul weather (well at least it's heavier and less prone to hydroplaning) than the miata that I didn't feel I needed traction control. Fortunately no accidents or tickets in past 6 years, so that helped in my decision too. (And the base model was just too much bang for the ole buck...almost felt like stealing )

A good friend of mine that owns an s2k was marveling that the headlights on his car look identical to mine. I'm enjoying them so far.

 

I guess I'll be the first to call 110% bullshit on this.

TCS/DSC/XYZ/ABC/DEFG.. bullshit.

If the computer isn't applying the breaks and/or chanign the F/A mixture (which as non tcs/dsc users have stated getting bad gas milate)..this is 110% placebo.

The computer isn't doing **** ... DSC/TCS to the A/F ratios..and thats about the only thing thats going to effect milage (unless the brakes are secretly being applied-- I think not).

..Bogus.. all of thsi.

thats my $.02,
Aaron
p.s. I got 13.03mpg last tank.. DSC/TSC on/off?? who cares..it doesn't matter.

 

Interesting. As many things as I've read on this forum (not to mention contributed) it's amazing that I've missed this thread until today. Have to start experimenting with this.