Cumulative Gas Mileage (Gas MPG) Thread
12-27-2004, 11:57 AM
#276
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Originally Posted by snap-on
I sorry to say it may take a few miles being driven to prove your point..
Are you prepared to give the dealership permission to take the car on an extended drive?
Most likely the thermostat would flag a CEL. IE P0128 (04's only)
If I were the service guy I would stick someone in the car and send them down the interstate for at least a 90-100 mile round trip to give them some real numbers to call the tech line with.
Let us know how it goes.
Are you prepared to give the dealership permission to take the car on an extended drive?
Most likely the thermostat would flag a CEL. IE P0128 (04's only)
If I were the service guy I would stick someone in the car and send them down the interstate for at least a 90-100 mile round trip to give them some real numbers to call the tech line with.
Let us know how it goes.
12-27-2004, 01:00 PM
#277
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OH HOWARD GOT TO IT FIRST
it can be stuck without a cel just like a cat can be partially clogged and not throw a cel. philodox it seems you are going about things the right way. make sure you report back what they find. thanks and i hope they find a resolution
on a side note- my mpg has recently fallen from its normal 16 around town to about 14. ive been on it a little more recently so that could be it. ill keep an eye on it.
it can be stuck without a cel just like a cat can be partially clogged and not throw a cel. philodox it seems you are going about things the right way. make sure you report back what they find. thanks and i hope they find a resolutionon a side note- my mpg has recently fallen from its normal 16 around town to about 14. ive been on it a little more recently so that could be it. ill keep an eye on it.
12-27-2004, 01:04 PM
#278
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there was also the port campaign to change some dipsticks. plus one for each recall to fix the cars in port. plus one to change something in the manual etc. anytime a flash or recall or very important tsb there is a port campaign to fix those cars.
12-27-2004, 01:32 PM
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I went to the dealer back about 6 months ago complaining of poor MPG. They took my car on a trip to Sacramento and back on CC at 70mph and averaged 22mpg. The best MPG I have gotten so far was 21, but I wasn't on CC.
12-27-2004, 01:50 PM
#280
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Well, Just picked my car up from the dealer. They talked to Mazda USA tech service on the phone. They have no clue what may be causing it. Mazda USA has no way to check MPG without driving the car. Apparently most vehicles can check MPG through the CAN bus by measuring fuel spent vs. RPM/Gear or something like that. Apparently the RX-8 isn't capable of this test.
I had the dealer check for fuel leaks and they found none. They swear to me upon the bible that my Borla Cat-Back exhaust is the culprit and that if I put the stock exhaust back on that I'll get an extra 8mpg. What bullshit. I'm calling Mazda USA to complain to them first hand.
Will keep everyone posted on how things go.
I had the dealer check for fuel leaks and they found none. They swear to me upon the bible that my Borla Cat-Back exhaust is the culprit and that if I put the stock exhaust back on that I'll get an extra 8mpg. What bullshit. I'm calling Mazda USA to complain to them first hand.
Will keep everyone posted on how things go.
12-27-2004, 02:01 PM
#281
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you should have left it with them to test the mpg. but of course you would want a loaner and they would say no loaner because we think its your exhaust yadd yadda...
do you have any receipts showing when you got the borla. can you ompare the date with your mpg log to see if there was a change BB(before borla) to AB ?
do you have any receipts showing when you got the borla. can you ompare the date with your mpg log to see if there was a change BB(before borla) to AB ?
12-27-2004, 02:07 PM
#282
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Originally Posted by blksf8
I went to the dealer back about 6 months ago complaining of poor MPG. They took my car on a trip to Sacramento and back on CC at 70mph and averaged 22mpg. The best MPG I have gotten so far was 21, but I wasn't on CC.
12-27-2004, 02:16 PM
#283
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Originally Posted by zoom44
you should have left it with them to test the mpg. but of course you would want a loaner and they would say no loaner because we think its your exhaust yadd yadda...
do you have any receipts showing when you got the borla. can you ompare the date with your mpg log to see if there was a change BB(before borla) to AB ?
do you have any receipts showing when you got the borla. can you ompare the date with your mpg log to see if there was a change BB(before borla) to AB ?
12-27-2004, 02:36 PM
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Originally Posted by zoom44
OH HOWARD GOT TO IT FIRST it can be stuck without a cel just like a cat can be partially clogged and not throw a cel. philodox it seems you are going about things the right way. make sure you report back what they find. thanks and i hope they find a resolution
on a side note- my mpg has recently fallen from its normal 16 around town to about 14. ive been on it a little more recently so that could be it. ill keep an eye on it.
it can be stuck without a cel just like a cat can be partially clogged and not throw a cel. philodox it seems you are going about things the right way. make sure you report back what they find. thanks and i hope they find a resolutionon a side note- my mpg has recently fallen from its normal 16 around town to about 14. ive been on it a little more recently so that could be it. ill keep an eye on it.
Any one with access to the codes may notice the 128 has been dropped for the 05's
12-27-2004, 03:20 PM
#286
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my mileage in city has dropped from 14 to 11-12 since it got very cold all im doing differently is letting it warrm up for 3-5 minutes before i go, is it possible that im losing the mileage in warmup??? coz this is unacceptably low.
12-27-2004, 03:25 PM
#287
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Originally Posted by MazdaspeedFeras
my mileage in city has dropped from 14 to 11-12 since it got very cold all im doing differently is letting it warrm up for 3-5 minutes before i go, is it possible that im losing the mileage in warmup??? coz this is unacceptably low.
But yeah, may be the cold.. or something else.. once I find out what's going on with mine, I'll let everyone know.
12-27-2004, 03:36 PM
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Originally Posted by czr
Excuse me for not being familiar with CA. How far is Sacramento from CC? They just took it for a road trip to check gas mileage?
12-27-2004, 05:10 PM
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Originally Posted by snap-on
Is Howards car an 04? As some of you remember we saw many thermostats replaced last winter for a P0128 code..
Any one with access to the codes may notice the 128 has been dropped for the 05's
Any one with access to the codes may notice the 128 has been dropped for the 05's
12-27-2004, 07:53 PM
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The tires that came with the car are downright dangerous in cold, slick weather. Many threads and posts on this one. The biggest problem is getting the better tires as they are still in short supply because they are they same size as those used on the 350Z thus are in high demand.
The mileage is BS...and they know it. You need to press that one with Mazda USA directly.
The mileage is BS...and they know it. You need to press that one with Mazda USA directly.
12-28-2004, 05:43 AM
#291
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Mazda doesn't set the MPG. The EPA does. Mazda cannot modify the sticker.
If you keep the RPMs low you will get EPA numbers. Of coarse your car will feel like it has 100 HP, but that is how the EPA drives.
Problem is most 100HP cars still have much better MPG than the RX-8 even if you keep its RPMs low. Now, take the RPMs up on the RX-8 and you have a 200+ HP car that gets millage more like a 300+ HP car.
Mazda is the beneficiary of the deception (i.e. a price sticker that says "239 HP" motor with decent EPA numbers), but they aren't the cause of it.
-Mr. Wigggles
If you keep the RPMs low you will get EPA numbers. Of coarse your car will feel like it has 100 HP, but that is how the EPA drives.
Problem is most 100HP cars still have much better MPG than the RX-8 even if you keep its RPMs low. Now, take the RPMs up on the RX-8 and you have a 200+ HP car that gets millage more like a 300+ HP car.
Mazda is the beneficiary of the deception (i.e. a price sticker that says "239 HP" motor with decent EPA numbers), but they aren't the cause of it.
-Mr. Wigggles
12-28-2004, 06:56 AM
#292
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Originally Posted by MrWigggles
Mazda doesn't set the MPG. The EPA does. Mazda cannot modify the sticker.
If you keep the RPMs low you will get EPA numbers. Of coarse your car will feel like it has 100 HP, but that is how the EPA drives.
Problem is most 100HP cars still have much better MPG than the RX-8 even if you keep its RPMs low. Now, take the RPMs up on the RX-8 and you have a 200+ HP car that gets millage more like a 300+ HP car.
Mazda is the beneficiary of the deception (i.e. a price sticker that says "239 HP" motor with decent EPA numbers), but they aren't the cause of it.
-Mr. Wigggles
If you keep the RPMs low you will get EPA numbers. Of coarse your car will feel like it has 100 HP, but that is how the EPA drives.
Problem is most 100HP cars still have much better MPG than the RX-8 even if you keep its RPMs low. Now, take the RPMs up on the RX-8 and you have a 200+ HP car that gets millage more like a 300+ HP car.
Mazda is the beneficiary of the deception (i.e. a price sticker that says "239 HP" motor with decent EPA numbers), but they aren't the cause of it.
-Mr. Wigggles
I don't give a crap what the sticker says, I know people with Vipers and Ford GTs(500+ HP cars) that get better mileage. I get 19.8 in town in my F150 Supercrew PU. My RX4 got over 20mpg and I was young and drove it hard all the time.
Nothing you said has anything to do with the problem my RX8 has with it's gas consumption.
12-28-2004, 12:05 PM
#293
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Originally Posted by RX4+30Years=RX8
What you are saying may be true for your car, the way my car should be and most others, but it does not apply to the way mine is. I have tried keeping the rpms below 3500 (worst mileage of all at 8.7), below 4500(9.7mpg), between 3000 and 6000(9.5) and WOT to redline in every gear(10.1mpg) and it doesn't differ. I have let friends drive it and they get the same results so it is not me.
I don't give a crap what the sticker says, I know people with Vipers and Ford GTs(500+ HP cars) that get better mileage. I get 19.8 in town in my F150 Supercrew PU. My RX4 got over 20mpg and I was young and drove it hard all the time.
Nothing you said has anything to do with the problem my RX8 has with it's gas consumption.
I don't give a crap what the sticker says, I know people with Vipers and Ford GTs(500+ HP cars) that get better mileage. I get 19.8 in town in my F150 Supercrew PU. My RX4 got over 20mpg and I was young and drove it hard all the time.
Nothing you said has anything to do with the problem my RX8 has with it's gas consumption.
btw, I am getting about 18 mpg, sometimes a litttle less, sometimes a little more, driving fairly normal.
12-28-2004, 12:56 PM
#294
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Originally Posted by RX4+30Years=RX8
What you are saying may be true for your car, the way my car should be and most others, but it does not apply to the way mine is. I have tried keeping the rpms below 3500 (worst mileage of all at 8.7), below 4500(9.7mpg), between 3000 and 6000(9.5) and WOT to redline in every gear(10.1mpg) and it doesn't differ. I have let friends drive it and they get the same results so it is not me.
I don't give a crap what the sticker says, I know people with Vipers and Ford GTs(500+ HP cars) that get better mileage. I get 19.8 in town in my F150 Supercrew PU. My RX4 got over 20mpg and I was young and drove it hard all the time.
Nothing you said has anything to do with the problem my RX8 has with it's gas consumption.
I don't give a crap what the sticker says, I know people with Vipers and Ford GTs(500+ HP cars) that get better mileage. I get 19.8 in town in my F150 Supercrew PU. My RX4 got over 20mpg and I was young and drove it hard all the time.
Nothing you said has anything to do with the problem my RX8 has with it's gas consumption.
12-28-2004, 02:51 PM
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Originally Posted by klegg
So the best you are getting is 10.1 mpg? There is something wrong with your car. Get on the phone with MNA asap, and so not take no for an answer!
btw, I am getting about 18 mpg, sometimes a litttle less, sometimes a little more, driving fairly normal.
btw, I am getting about 18 mpg, sometimes a litttle less, sometimes a little more, driving fairly normal.
12-28-2004, 02:53 PM
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Originally Posted by ScandlsRx-8
Forgive me if I missed this somewhere in prior posts, but how many miles do you have on your 8?
12-28-2004, 03:12 PM
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Originally Posted by RX4+30Years=RX8
I have emailed them with the specifics.
If anyone has a direct line for this let me know.
12-28-2004, 06:54 PM
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Originally Posted by RX4+30Years=RX8
Last time I looked it was about 9600 miles. It had 7500 on it back in May when this mess started happening.
Last edited by ScandlsRx-8; 12-28-2004 at 07:32 PM.
12-28-2004, 07:46 PM
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Originally Posted by RX4+30Years=RX8
Nope, Joe Myers.