Notices
RX-8 Discussion General discussion about the RX-8 that doesn't fit in one of the specialty forums.
Sponsored by:
Sponsored by: CARiD

How can I get better gas mileage?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 12-26-2006 | 08:20 AM
  #51  
KimiFelipe's Avatar
Registered
 
Joined: Nov 2006
Posts: 158
Likes: 0
Originally Posted by dannobre
Where the hell do people come up with stupid ideas like this............

Your fuel economy won't improve...the fuel flow is essentially zero with your foot off the gas.......

And it is dangeroug as hell............
Um, okay, believe what you want.

Wrong on both counts but that's okay.

I see that you are another in the crowd that gets pissed off like a baby when everyone doesn't agree with you. That's cool, dude.

You enjoy your 13.5 mpg while I enjoy my 21 mpg.
Old 12-26-2006 | 08:21 AM
  #52  
KimiFelipe's Avatar
Registered
 
Joined: Nov 2006
Posts: 158
Likes: 0
Originally Posted by dannobre
No control. You don't have power on as an option....and you can't use engine braking as an emergency measure.....and you have to shift when you are task loaded if something happens.

Hell......why would you want too??
Well, most of us use our brakes, but, you know, we're wrong to do so.
Old 12-26-2006 | 01:35 PM
  #53  
dannobre's Avatar
Modulated Moderator
iTrader: (3)
 
Joined: Feb 2004
Posts: 13,719
Likes: 338
From: Smallville
Let me guess...your 18 and your parents bought your car......

You don't seem to have a clue about much....and you never will cause you think you are always right....

How am I doing so far


Use your brakes......that's what they are there for....

If you want better mileage.....be kind to your gas pedal......or buy a car that gets 50mpg!
Old 12-26-2006 | 01:51 PM
  #54  
KimiFelipe's Avatar
Registered
 
Joined: Nov 2006
Posts: 158
Likes: 0
Originally Posted by dannobre
Let me guess...your 18 and your parents bought your car......

You don't seem to have a clue about much....and you never will cause you think you are always right....

How am I doing so far


Use your brakes......that's what they are there for....

If you want better mileage.....be kind to your gas pedal......or buy a car that gets 50mpg!
You are the one acting like 18. Guess again. Asshat.
Old 12-26-2006 | 02:00 PM
  #55  
dannobre's Avatar
Modulated Moderator
iTrader: (3)
 
Joined: Feb 2004
Posts: 13,719
Likes: 338
From: Smallville
I don't know why I bother.....

Fighting with an unarmed opponent is so stupid

KimiFelipe....if you don't believe me that it's wrong to use your clutch as a brake...and that coasting in neutral won't increase your mileage...and is dangerous....don't

But don't profess to having a clue about driving....cause you obviously don't

And some other poor sucker will think that it is OK and take out there clutch, or wreck their car...cause you said it was OK

Grow up....dispense advise that you have knowledge in....and STFU about other things.

Especially when others tell you that you are wrong
Old 12-26-2006 | 03:17 PM
  #56  
V_for_velocity's Avatar
One more couldn't hurt
 
Joined: Jan 2005
Posts: 340
Likes: 0
From: Saskatoon, SK -- go to Winnipeg then head west
My record low mpg reading was 9.02 -- newly purchased, winter, in town. Now it's around 14-15 mpg, in town. Lower in winter but not 9.02, thank the godess.
Old 12-26-2006 | 03:20 PM
  #57  
Brettus's Avatar
Boosted Kiwi
iTrader: (2)
 
Joined: Apr 2006
Posts: 20,601
Likes: 1,534
From: Y-cat-o NZ
When I was an ignorant teenager I used to put my foot on the clutch & coast down hills . I know better now .
If you had a wide band 02 meter this is what you would see
At idle AFR 14.6 (same mixture as at constant cruise)
foot off the throttle and engine braking AFR : off the scale (IE no fuel being injected)

Not to mention the fact that you have less control .
Old 12-26-2006 | 03:35 PM
  #58  
cjkim's Avatar
^noob
 
Joined: Jan 2006
Posts: 1,340
Likes: 0
From: socal
Originally Posted by Brettus
When I was an ignorant teenager I used to put my foot on the clutch & coast down hills . I know better now .
If you had a wide band 02 meter this is what you would see
At idle AFR 14.6 (same mixture as at constant cruise)
foot off the throttle and engine braking AFR : off the scale (IE no fuel being injected)

Not to mention the fact that you have less control .
and it's illegal too! though i don't see how they could catch you on this
Old 12-26-2006 | 03:41 PM
  #59  
dannobre's Avatar
Modulated Moderator
iTrader: (3)
 
Joined: Feb 2004
Posts: 13,719
Likes: 338
From: Smallville
Here's a good reason in some cars not to coast down hills or to coast in neutral with your foot on the clutch.

What happens to you power steering if the car engine dies..........you have NONE. My ex-wife had this happen in a corner, going down a hill....and hit the curb and rolled 5 times into a chainlink fence. The fence was the only thing that kept her from going over a 50 ft cliff....

Here's one good thing about the electrical power steering on the 8
Old 12-26-2006 | 05:37 PM
  #60  
KimiFelipe's Avatar
Registered
 
Joined: Nov 2006
Posts: 158
Likes: 0
Originally Posted by dannobre
I don't know why I bother.....

Fighting with an unarmed opponent is so stupid

KimiFelipe....if you don't believe me that it's wrong to use your clutch as a brake...and that coasting in neutral won't increase your mileage...and is dangerous....don't

But don't profess to having a clue about driving....cause you obviously don't

And some other poor sucker will think that it is OK and take out there clutch, or wreck their car...cause you said it was OK

Grow up....dispense advise that you have knowledge in....and STFU about other things.

Especially when others tell you that you are wrong
Wow, did you grow up an unloved orphan or what? What a hateful ******* you are.

Who said I was using my clutch as a brake? How does one do that, exactly, I wonder?

Not sure what grade school you went to that taught you the logic that lead you to rephrase anything I said in the above post, but man, that town needs a tax hike. When do you graduate middle school, then?

So, every time someone disagrees with you, you act like a complete asshat, but I guess every time any other person reads what you say and disagrees with you, um, they need to STFU and do what you say.

mmkay, sounds about right


So, care to list the accidents I've had, since you are so knowledgable about, er, everything it sounds like? How about mentioning the accidents you've had? What makes you think drifting in neutral has any correlation to unsafe driving whatsoever, anyway. Got any data to back that loud mouth up?

I haven't read a word from your vile mind that tells me any reason whatsoever that the infinitesimal amount of information I've given you about my driving habits would make me any more or less safe than any other driver, of any skill level, or age group, or demographic, or anything whatever.

You simply see my posts disagreeing with you, and you behave like a 5 year old spoiled brat who dropped his chocolate on the ground and mommy wont pick it up fast enough. You act like the brat in the harry potter movies, even.

I do have to thank you though. My family and friends shared some good laughs over this thread, particularly the bit about using only engine braking to slow down, and putting the car into first gear at 9 mph to slow to a stop, using the brakes "only in an emergency." I'm sure your mechanic is going to love you over the years.

So, thanks, bud. I'll listen if you have anything intelligent to say.
Old 12-26-2006 | 05:38 PM
  #61  
KimiFelipe's Avatar
Registered
 
Joined: Nov 2006
Posts: 158
Likes: 0
Originally Posted by dannobre
Here's a good reason in some cars not to coast down hills or to coast in neutral with your foot on the clutch.

What happens to you power steering if the car engine dies..........you have NONE. My ex-wife had this happen in a corner, going down a hill....and hit the curb and rolled 5 times into a chainlink fence. The fence was the only thing that kept her from going over a 50 ft cliff....

Here's one good thing about the electrical power steering on the 8
Why would you keep your foot on the clutch? Why not take the car out of gear and leave it in neutral?

Why would the engine die?
Old 12-26-2006 | 07:11 PM
  #62  
dannobre's Avatar
Modulated Moderator
iTrader: (3)
 
Joined: Feb 2004
Posts: 13,719
Likes: 338
From: Smallville
Originally Posted by KimiFelipe
Wow. I cant beleive this is how you drive. I'm sure if you use the brakes, and leave it in neutral as you slow down, your mileage will improve dramatically. Also, warming up your car for 5 minutes or more is not good, according to everything I've ever learned or read. You can significantly improve your mileage, and your engine life, by changing these things.

But that's JMO. Hope it works out well for you.
This is what started it.......if you were trying to be sarcastic you could have said so....instead of looking like you agreed with the previous post.....

As for the personal attacks ASSHAT...I think you will find they are not my style on here......

Maybe look at yourself for how this thread went.....

For someone that appears to be intelligent....well...I'll leave that one for others to figure out

I'm out of this discussion.........
Old 12-26-2006 | 07:19 PM
  #63  
dannobre's Avatar
Modulated Moderator
iTrader: (3)
 
Joined: Feb 2004
Posts: 13,719
Likes: 338
From: Smallville
Originally Posted by KimiFelipe
Why would you keep your foot on the clutch? Why not take the car out of gear and leave it in neutral?

Why would the engine die?
The engine died due to a defect in the electrical system...the vehicle had less than 200 miles on it...it was in the shop that afternoon...they couldn't find it.
She put her foot on the clutch to try and restart it...

All I can say is that I'm glad that my 6mos old son wasn't in the car seat...and she was OK

My whole point in my objections in this thread...is don't put yourself in a situation that will task load you at the worst possible time. If something goes wrong...you don't want to be F***ing around trying to do unnecessary thing that are useless in the first place.

If you can't see the logic in that then maybe you are less intelligent than I give you credit for.

I spend a lot of my time in high performance driving situations.......I don't like playing with fire. the old KISS prinsible applies here...keep it simple
Old 12-26-2006 | 07:27 PM
  #64  
KimiFelipe's Avatar
Registered
 
Joined: Nov 2006
Posts: 158
Likes: 0
Originally Posted by dannobre
The engine died due to a defect in the electrical system...the vehicle had less than 200 miles on it...it was in the shop that afternoon...they couldn't find it.
She put her foot on the clutch to try and restart it...

All I can say is that I'm glad that my 6mos old son wasn't in the car seat...and she was OK

My whole point in my objections in this thread...is don't put yourself in a situation that will task load you at the worst possible time. If something goes wrong...you don't want to be F***ing around trying to do unnecessary thing that are useless in the first place.

If you can't see the logic in that then maybe you are less intelligent than I give you credit for.

I spend a lot of my time in high performance driving situations.......I don't like playing with fire. the old KISS prinsible applies here...keep it simple
I know it's difficult to read, but try. You still havent explained how coasting in neutral causes a safety concern. How would having the transmission in neutral cause the engine to die? If there were 200 mi on the car, clearly there was some problem with the car. How does this have anything to do with coasting in neutral?

After about 250,000 mi driving where I coast whenever I can, I dont see any reason for your unbelievably violent reaction to my posts.

You are the one whose been insulting. All I said was I cant believe you drive like that. You demonstrated what an asshat you are later in the thread . . . .
Old 12-26-2006 | 07:40 PM
  #65  
dannobre's Avatar
Modulated Moderator
iTrader: (3)
 
Joined: Feb 2004
Posts: 13,719
Likes: 338
From: Smallville
You must be reacting to someone else???...go back and read the thread please.....and try and figure out what happened

I sure never insulted you......

As for the neutral thing...read the last few posts.....

Coasting in neutral could have killed my wife and son.....want any more reason that it is stupid and dangerous.

Also...I have done lots of tuning logs. If you coast in neutral...the car adds fuel to keep it idling......when you are coasting with your car in gear, and your foot off the gas....there is no fuel being added to the engine. i think you will see someone else mentioned that above so I didn't bother.

Let's hear your logic as to why it is either safe...or effective...and then we can both shut up and agree to disagree

Your court
Old 12-26-2006 | 07:40 PM
  #66  
MP3Guy's Avatar
Registered
 
Joined: Aug 2003
Posts: 589
Likes: 0
Originally Posted by KimiFelipe
Wow. I cant beleive this is how you drive. I'm sure if you use the brakes, and leave it in neutral as you slow down, your mileage will improve dramatically. .
This is an old myth that won't die. We're not using carburetors anymore, and the managed fuel systems we use today will actually use LESS fuel using the engine braking than letting it idle in neutral as you come to a stop.
Old 12-26-2006 | 07:51 PM
  #67  
KimiFelipe's Avatar
Registered
 
Joined: Nov 2006
Posts: 158
Likes: 0
Lets just leave it at that. You still haven't shown me any reason that drifting in neutral is inherently unsafe, yet you spout it like the gospel of god (you a preacher?).

I don't accept your suggestion that a freak occurance that might happen on a rare occasion is reason to do anything. However. The exception has no relationship to the rule. You state that drifting in neutral is inherently unsafe, I'm asking how. It's fine to disagree, but I'm not going to change my behaviour or agree with you based on a freak occurance. Of course you can do what you want, but whatever.

I stayed in this conversation to learn if I was actually doing something wrong all these years. Seems like some people stay in these conversations to preach their gospel.

Finally, quoting you:

Originally Posted by dannobre
Where the hell do people come up with stupid ideas like this............

Your fuel economy won't improve...the fuel flow is essentially zero with your foot off the gas.......

And it is dangeroug as hell............
Is a clear insult - you call me stupid, and then _dangerous_ This is an asshat post, no question. I dont think my post:

Originally Posted by kimifelipe
Wow. I cant beleive this is how you drive. I'm sure if you use the brakes, and leave it in neutral as you slow down, your mileage will improve dramatically.
can be taken as insulting, unless you're looking for an insult. But that's just me.

Originally Posted by dannobre
You must be reacting to someone else???...go back and read the thread please.....and try and figure out what happened

I sure never insulted you......

As for the neutral thing...read the last few posts.....

Coasting in neutral could have killed my wife and son.....want any more reason that it is stupid and dangerous.

Also...I have done lots of tuning logs. If you coast in neutral...the car adds fuel to keep it idling......when you are coasting with your car in gear, and your foot off the gas....there is no fuel being added to the engine. i think you will see someone else mentioned that above so I didn't bother.

Let's hear your logic as to why it is either safe...or effective...and then we can both shut up and agree to disagree

Your court

Last edited by KimiFelipe; 12-26-2006 at 07:57 PM.
Old 12-26-2006 | 07:56 PM
  #68  
KimiFelipe's Avatar
Registered
 
Joined: Nov 2006
Posts: 158
Likes: 0
Originally Posted by MP3Guy
This is an old myth that won't die. We're not using carburetors anymore, and the managed fuel systems we use today will actually use LESS fuel using the engine braking than letting it idle in neutral as you come to a stop.
I'd never heard that injectors are cut/off or cut down during engine braking, so fair enough. However if you engine brake you lose speed a lot quicker than if you drift. In fact, I have driven for up to 5 miles or so in the mountains of Tennesee.

I consistently get high mileage in my cars. Maybe its a fluke, but compared to my wife I do a good 1 to 2 mpg better in the same car.

Who knows. However when someone says to do something that's drastically different from what I do, I like to find out why, and decide if I need to change the way I do things (not in this case).

However, I strongly disbelieve that using only the engine to slow your car is (a) going to give you better gas mileage or (b) safer - in fact my opinion (that I'm not shoving down anyone else's throat, btw) is that this is really unsafe behavior, because when using the brake pedal, you have instant control over your rate of deceleration.

Why would having instant control over _acceleration_ be more safe than instant control over _deceleration_ I call this

Complete

But that's just me. You don't have to agree with me about it

Anyway thanks for telling me about the fuel cutoff, but I think drifting is still better, because you dont slow down as fast.
Old 12-26-2006 | 07:56 PM
  #69  
dannobre's Avatar
Modulated Moderator
iTrader: (3)
 
Joined: Feb 2004
Posts: 13,719
Likes: 338
From: Smallville
So your using the...it's worked for me for***years logic...it must be OK

Or a one time fluke

By the way....if you read the quote you posted from me....I said the practice was stupid...not you. The practice was associated with the original posters idea....

I'm beginning to question my prior thinking

Good Luck...and have a good life......drive safe, and I hope your family is never in the situation that this practice nearly put mine
Old 12-26-2006 | 08:00 PM
  #70  
KimiFelipe's Avatar
Registered
 
Joined: Nov 2006
Posts: 158
Likes: 0
Originally Posted by dannobre
So your using the...it's worked for me for***years logic...it must be OK

Or a one time fluke

By the way....if you read the quote you posted from me....I said the practice was stupid...not you. The practice was associated with the original posters idea....

I'm beginning to question my prior thinking

Good Luck...and have a good life......drive safe, and I hope your family is never in the situation that this practice nearly put mine
Look at your own logic. This is exactly what you're doing. One extremely improbable event occurs, that one type of behavior _might_ have made worse, and you condemn the behavior completely and utterly.

Play that safety card, really makes an emotional argument sound solid. . . . I hope your family . . . blah blah blah, as if to imply that I am endangering my family by drifting. You are bait and switching - you must be in the bush administration somewhere.

However from a logical standpoint it is utterly off the topic, and has no relevance whatever.
Old 12-26-2006 | 08:00 PM
  #71  
dannobre's Avatar
Modulated Moderator
iTrader: (3)
 
Joined: Feb 2004
Posts: 13,719
Likes: 338
From: Smallville
Originally Posted by KimiFelipe
I'd never heard that injectors are cut/off or cut down during engine braking, so fair enough. However if you engine brake you lose speed a lot quicker than if you drift. In fact, I have driven for up to 5 miles or so in the mountains of Tennesee.

I consistently get high mileage in my cars. Maybe its a fluke, but compared to my wife I do a good 1 to 2 mpg better in the same car.

Who knows. However when someone says to do something that's drastically different from what I do, I like to find out why, and decide if I need to change the way I do things (not in this case).

However, I strongly disbelieve that using only the engine to slow your car is (a) going to give you better gas mileage or (b) safer - in fact my opinion (that I'm not shoving down anyone else's throat, btw) is that this is really unsafe behavior, because when using the brake pedal, you have instant control over your rate of deceleration.

Why would having instant control over _acceleration_ be more safe than instant control over _deceleration_ I call this

Complete

But that's just me. You don't have to agree with me about it

Anyway thanks for telling me about the fuel cutoff, but I think drifting is still better, because you dont slow down as fast.
Read the Red....go back to my posts What are you arguing about...I said that it isa dangerous....and stupid thing to do?????

And you questioned my LOGIC skills??


Someone help me out here...am I missing something???

You agree???? WTF........
Old 12-26-2006 | 08:03 PM
  #72  
dannobre's Avatar
Modulated Moderator
iTrader: (3)
 
Joined: Feb 2004
Posts: 13,719
Likes: 338
From: Smallville
As far as safety in using accelleration...There are lots of reasons that this is important.

I have had to use power to rotate around a car on the track numerous times when braking would have resulted in me planting myself into the side of another car.

If you use the argument that that is only on the track.....save it.

Having only one option...is never safer than 2
Old 12-26-2006 | 08:11 PM
  #73  
Iwntrx-8's Avatar
Registered User
 
Joined: Dec 2006
Posts: 74
Likes: 0
Originally Posted by dannobre
No control. You don't have power on as an option....and you can't use engine braking as an emergency measure.....and you have to shift when you are task loaded if something happens.

Hell......why would you want too??
I leave my STi in neutral all the time when I'm slowing down to a stop light or if I'm cruising into a parking lot I'm almost always in neutral b/c my car has enough momentum to get into the parking spot. I did that today when I test drove the 8...Are you talking on your cell phone or something while driving that your task loaded or eating food??
Old 12-26-2006 | 08:12 PM
  #74  
Keef's Avatar
the shit starter
 
Joined: Mar 2006
Posts: 673
Likes: 0
From: Houston
wow all the insulting and fighting on this topic is retarded....

For starters, let me say that I've done a couple of the things you all practice to achieve better mileage...

1. Coasting
2. Using my engine to brake, as in down gearing...
3. Using my cruise control all the f-ing time
4. Changing gears at low RPM's (specifically those told by the manual)
5. Skipping gears (which only becomes logical if you high rev a lower gear)

Now from moderate experience I can say that coasting is the best way to save mileage, mostly because it causes you to pay attention to traffic far ahead... Other than that, the only other thing that you can change within your driving characteristics is that of when you change gears....

I used to think that the Mazda engineers would know of when to change gears to achieve the best mileage... But lately I've been changing gears (based on outside temperatures/engine temperature) at higher and higher RPM's and noticed a slight increase of mileage... Pretty much shifting gears at 4,000 to 5,000 RPM's, increased my mileage by giving me some 20-30 more miles per tank...

I guess it all comes down to driving and how each Renesis is tuned slightly differently
Old 12-26-2006 | 08:19 PM
  #75  
dannobre's Avatar
Modulated Moderator
iTrader: (3)
 
Joined: Feb 2004
Posts: 13,719
Likes: 338
From: Smallville
Originally Posted by Iwntrx-8
I leave my STi in neutral all the time when I'm slowing down to a stop light or if I'm cruising into a parking lot I'm almost always in neutral b/c my car has enough momentum to get into the parking spot. I did that today when I test drove the 8...Are you talking on your cell phone or something while driving that your task loaded or eating food??
LOL....task loading is what happens in an emergency situation when your brain suddenly has to process a lot of information in a very short time.

All I have been saying is that the safest thing to do is to drive simply...with the fewest imputs...to have your brain learn a way that is safe in every circumstance. And is always the same.

Then when the **** hits the fan...you can react...and not have to try and figure out if your car is in gear, foot is on the brake, etc...you will be able to do it automatically.

Coasting in neutral up to a stop .......why would that be safe.....???


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: How can I get better gas mileage?



All times are GMT -5. The time now is 09:18 AM.