Gas mileage - Page 2 - Mustang Evolution

Go Back   Mustang Evolution > Ford Mustang | Wrenching, Care and General Topics > General Mustang Discussion



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 11-27-2013, 10:14 PM   #36
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,587
Yeah but the cast crank is good for just as much power until you get above 6500 rpm. Not sure I would go higher than that on stock 4.6L rods regardless of what crank was in there.

Anyway back on topic, as far as gears... if you do a lot of highway driving you might want to keep the stock gears but if you cruise the back roads or do more city driving, you might notice an increase in mpg with steeper gears or at least it won't fall off. I get 20mpg+ hand calculated in my car with 3.73s.
__________________
2000 Mustang GT Steeda #0048

Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.
scottydsntknow is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-27-2013, 10:27 PM   #37
Registered Member
Regular
 
Davesorl04gt's Avatar
 
Join Date: Nov 2013
Location: Euharlee
Region: Georgia
Posts: 165
Quote:
Originally Posted by escottcarp View Post
I average 21.5mpg city and have made over 27mpg with 90% hwy driving.

'02 GT 5-Speed.

Also, the Mustang gas tank is small. You can easily notice the needle moved every 15 miles.

Congratulations on getting a Mustang!
If I can get close to 21/27, I'll be very happy. Still have 1/2 tank in it. Going to run it to E before filling up with higher octane, then do it again and go with 93 to see the difference.
Davesorl04gt is offline   Reply With Quote
Old 11-27-2013, 10:28 PM   #38
Registered Member
Regular
 
UltArc's Avatar
 
Join Date: Sep 2012
Region: Ohio
Posts: 1,782
Quote:
Originally Posted by scottydsntknow View Post
Yeah but the cast crank is good for just as much power until you get above 6500 rpm. Not sure I would go higher than that on stock 4.6L rods regardless of what crank was in there.

Anyway back on topic, as far as gears... if you do a lot of highway driving you might want to keep the stock gears but if you cruise the back roads or do more city driving, you might notice an increase in mpg with steeper gears or at least it won't fall off. I get 20mpg+ hand calculated in my car with 3.73s.
Have you recalculated your speedo and odo?
__________________
2012 Mustang EPA: 19/29
2012 AeroStang: 40/46

My sponsor, Tokkyo Nutrition, offers 50% off your entire order with the code "PowerHouse"
UltArc is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-27-2013, 10:32 PM   #39
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,587
Quote:
Originally Posted by UltArc View Post
Have you recalculated your speedo and odo?
The speedcal, she lurks.
__________________
2000 Mustang GT Steeda #0048

Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.
scottydsntknow is offline   Reply With Quote
Old 11-27-2013, 10:35 PM   #40
Registered Member
Regular
 
DaBluedude's Avatar
 
Join Date: Oct 2008
Region: Canada
Posts: 1,996
Quote:
Originally Posted by KoolPwny View Post
yeah me too but I think autos only have a forged crankshaft right?
Only manual machs got forged cranks.
__________________
2003 Mach 1
DaBluedude is offline   Reply With Quote
Old 11-27-2013, 10:39 PM   #41
Registered Member
Regular
 
MidnightBlueGT's Avatar
 
Join Date: Apr 2013
Location: Charlotte
Region: North Carolina
Posts: 3,887
Quote:
Originally Posted by DaBluedude View Post
Only manual machs got forged cranks.
Good job
MidnightBlueGT is offline   Reply With Quote
Old 11-27-2013, 11:15 PM   #42
Registered Member
Regular
 
UltArc's Avatar
 
Join Date: Sep 2012
Region: Ohio
Posts: 1,782
Quote:
Originally Posted by scottydsntknow View Post
The speedcal, she lurks.
Cool, a lot of people don't. I imagine you checked it for sure with GPS and mile markers. I haven't checked on my Honda, but the Mustang with GT 18s and P Zero's sets it off by 1.2% from the factory setup.
__________________
2012 Mustang EPA: 19/29
2012 AeroStang: 40/46

My sponsor, Tokkyo Nutrition, offers 50% off your entire order with the code "PowerHouse"
UltArc is offline   Reply With Quote
Old 11-28-2013, 10:39 AM   #43
ME Bloodhound
Staff
 
Soccerluvr4's Avatar
 
Join Date: Feb 2012
Location: Sacramento/Bay Area
Region: California
Posts: 14,672
Just filled up last night
Attached Thumbnails
Click image for larger version

Name:	image-343402148.jpg
Views:	97
Size:	177.6 KB
ID:	138782  
__________________

Bullitt build paused pending graduation

HID end all thread
Soccerluvr4 is offline   Reply With Quote
Old 12-01-2013, 06:10 PM   #44
Registered Member
Regular
 
Davesorl04gt's Avatar
 
Join Date: Nov 2013
Location: Euharlee
Region: Georgia
Posts: 165
First fill up since the dealer fill up, which I'm sure was with 87 octane. Got 20.5 mpg city and hwy combined. Not bad. Filled up with 93 octane and putting some mods on this week and will check again.
Davesorl04gt is offline   Reply With Quote
Old 12-01-2013, 07:48 PM   #45
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,412
Quote:
Originally Posted by Davesorl04gt View Post
First fill up since the dealer fill up, which I'm sure was with 87 octane. Got 20.5 mpg city and hwy combined. Not bad. Filled up with 93 octane and putting some mods on this week and will check again.
That's good!
You probably won't see any gain by running 93, and the mileage may even drop off a bit.
straybullitt is offline   Reply With Quote
Old 12-01-2013, 08:19 PM   #46
Registered Member
Regular
 
Davesorl04gt's Avatar
 
Join Date: Nov 2013
Location: Euharlee
Region: Georgia
Posts: 165
Quote:
Originally Posted by straybullitt View Post
That's good!
You probably won't see any gain by running 93, and the mileage may even drop off a bit.
Only floored it 4 times on the first tank full. Twice to pass and twice just for fun.
Davesorl04gt is offline   Reply With Quote
Old 12-01-2013, 09:28 PM   #47
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,587
I forget don't the new ECUs know if its 93 in the tank and add timing to compensate?

Damn newfangled computron thingers...
__________________
2000 Mustang GT Steeda #0048

Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.
scottydsntknow is offline   Reply With Quote
Old 12-01-2013, 09:53 PM   #48
Registered Member
Regular
 
Davesorl04gt's Avatar
 
Join Date: Nov 2013
Location: Euharlee
Region: Georgia
Posts: 165
Quote:
Originally Posted by scottydsntknow View Post
I forget don't the new ECUs know if its 93 in the tank and add timing to compensate?

Damn newfangled computron thingers...
Is that what you call a smart car?
Davesorl04gt is offline   Reply With Quote
Old 12-01-2013, 09:59 PM   #49
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,587
Quote:
Originally Posted by Davesorl04gt View Post
Is that what you call a smart car?
No but searching Google images for "Smart Car" this came up:



No idea why but I'll post it because, well... do I really need to give a reason?
__________________
2000 Mustang GT Steeda #0048

Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.
scottydsntknow is offline   Reply With Quote
Old 12-01-2013, 10:06 PM   #50
Registered Member
Regular
 
Davesorl04gt's Avatar
 
Join Date: Nov 2013
Location: Euharlee
Region: Georgia
Posts: 165
Quote:
Originally Posted by scottydsntknow View Post
No but searching Google images for "Smart Car" this came up:



No idea why but I'll post it because, well... do I really need to give a reason?
Daaaaaaaamn, that made my computer lock up1
Davesorl04gt is offline   Reply With Quote
Old 12-01-2013, 10:10 PM   #51
Road Trip!
 
Join Date: Aug 2013
Location: Gardena
Region: California
Posts: 1,305
Quote:
Originally Posted by scottydsntknow View Post
No but searching Google images for "Smart Car" this came up: No idea why but I'll post it because, well... do I really need to give a reason?
she needs a boob mod

---------- Post added at 08:10 PM ---------- Previous post was at 08:09 PM ----------

*top end kit
KoolPwny is offline   Reply With Quote
Old 12-01-2013, 10:31 PM   #52
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,412
Quote:
Originally Posted by scottydsntknow View Post
I forget don't the new ECUs know if its 93 in the tank and add timing to compensate?

Damn newfangled computron thingers...
The ECU has no idea what fuel is in the tank. The ECU adjusts the timing via information received from the knock sensor. (Our cars have knock sensors don't they? ) lol.
The reason that I said that, about 93 octane, is 93 octane has more of the additive to slow down the rate of burn than 87 octane does. There is actually more energy, or BTU's, in a gallon of 87 octane fuel than a gallon of 93.
The gain that we see from using "high octane" is that it allows us to use higher compression and more total timing advance.
The stock tune maximizes performance using 87 octane. I doubt that the stock tune will be able to take advantage of the premium fuel while driving the car "conservatively" enough to get the most MPG.
A custom MPG tune on the other hand...
^ That doesn't sound like much fun though.

---------- Post added at 08:31 PM ---------- Previous post was at 08:30 PM ----------

Quote:
Originally Posted by scottydsntknow View Post
No but searching Google images for "Smart Car" this came up:



No idea why but I'll post it because, well... do I really need to give a reason?
^Tranny...
straybullitt is offline   Reply With Quote
Old 12-01-2013, 11:32 PM   #53
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,587
If that's a tranny then I'd find out the hard way...

As for the 93 octane, yeah I know how that works lol. I know there are cars out there that will pull timing automatically when it detects lower octane fuel (not IN the tank but via the knock sensor or some other crazy as system).
__________________
2000 Mustang GT Steeda #0048

Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.
scottydsntknow is offline   Reply With Quote
Old 12-01-2013, 11:52 PM   #54
Registered Member
Regular
 
2300turboford's Avatar
 
Join Date: Nov 2011
Location: london
Region: Kentucky
Posts: 2,903
16 city and 23 highway with a 5speef

---------- Post added at 12:52 AM ---------- Previous post was at 12:52 AM ----------

5 speed *
__________________
"Racing is life ,anything before or after is just waiting "-the king of cool -Steve McQueen
2300turboford is offline   Reply With Quote
Old 12-01-2013, 11:55 PM   #55
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,412
Quote:
Originally Posted by scottydsntknow View Post
If that's a tranny then I'd find out the hard way...

As for the 93 octane, yeah I know how that works lol. I know there are cars out there that will pull timing automatically when it detects lower octane fuel (not IN the tank but via the knock sensor or some other crazy as system).
I figured that you did. That was for the other curious minds.
Since the recommended fuel type for our cars is 87 octane, I believe that they will get the best mileage with that fuel. A vehicle where they recommend premium fuel, on the other hand, will get the best fuel economy when using premium fuel because that is the fuel that was used when they did the EPA testing for the vehicle.
Modern engines will run on any octane rating. They usually only recommended premium when that was the fuel used during EPA testing.
straybullitt is offline   Reply With Quote
Old 12-02-2013, 09:05 AM   #56
Registered Member
Regular
 
Davesorl04gt's Avatar
 
Join Date: Nov 2013
Location: Euharlee
Region: Georgia
Posts: 165
Quote:
Originally Posted by KoolPwny View Post
she needs a boob mod

---------- Post added at 08:10 PM ---------- Previous post was at 08:09 PM ----------

*top end kit
No no no no, Perfect! Oh, uh, what were we discussing? Yes, guess it good that my Tuner will be here this week.
Davesorl04gt is offline   Reply With Quote
Old 12-02-2013, 04:26 PM   #57
Road Trip!
 
Join Date: Aug 2013
Location: Gardena
Region: California
Posts: 1,305
Quote:
Originally Posted by Davesorl04gt View Post
No no no no, Perfect! Oh, uh, what were we discussing? Yes, guess it good that my Tuner will be here this week.
your gonna like it! Your car will shift better. Stock the shifts were pretty sloppy and unresponsive
KoolPwny is offline   Reply With Quote
Old 12-02-2013, 06:38 PM   #58
Registered Member
Regular
 
fomoco4life's Avatar
 
Join Date: Aug 2012
Location: Antioch
Region: California
Posts: 839
Quote:
Originally Posted by straybullitt View Post

I figured that you did. That was for the other curious minds.
Since the recommended fuel type for our cars is 87 octane, I believe that they will get the best mileage with that fuel. A vehicle where they recommend premium fuel, on the other hand, will get the best fuel economy when using premium fuel because that is the fuel that was used when they did the EPA testing for the vehicle.
Modern engines will run on any octane rating. They usually only recommended premium when that was the fuel used during EPA testing.
Didn't know our cars were rated for 87 I've been putting premium in mine the whole time. is this just a waste of my time and money??? Also I use to get about 17/19 City 20/22 highway until I did my exhaust and then that all went out the window cause I love the sound..getting 12/14 city now, but you can hear me coming and I love it
fomoco4life is offline   Reply With Quote
Old 12-02-2013, 09:12 PM   #59
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,587
Unless you have a 93 octane tune its not going to do any extra good to put 93 in it. Mine isn't tuned yet and I just run 87, runs great.
__________________
2000 Mustang GT Steeda #0048

Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.
scottydsntknow is offline   Reply With Quote
Old 12-02-2013, 09:37 PM   #60
Registered Member
Regular
 
MidnightBlueGT's Avatar
 
Join Date: Apr 2013
Location: Charlotte
Region: North Carolina
Posts: 3,887
Mine ran good on 87 before I tuned.
MidnightBlueGT is offline   Reply With Quote
Old 12-02-2013, 11:32 PM   #61
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,587
I really do need to at least pay someone on another one of the mustang forums who does mail order Moates QH tunes to burn me a "bama" style tune for 93 octane and then learn to do everything else myself.

But yeah I was surprised too when my buddy bought his 04 and the dealer told him (yeah these run great on regular). Back when gas was $1.20/gal or something... grumble...
__________________
2000 Mustang GT Steeda #0048

Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.
scottydsntknow is offline   Reply With Quote
Old 12-02-2013, 11:33 PM   #62
Registered Member
Regular
 
9tee7pony's Avatar
 
Join Date: Jun 2012
Location: Radford
Region: Virginia
Posts: 673
Mine seems to run the best on 89 with 93 mixed in every 3rd or 4th tank.
9tee7pony is offline   Reply With Quote
Old 12-16-2013, 08:25 PM   #63
Registered Member
Regular
 
Davesorl04gt's Avatar
 
Join Date: Nov 2013
Location: Euharlee
Region: Georgia
Posts: 165
Quote:
Originally Posted by straybullitt View Post
That's good!
You probably won't see any gain by running 93, and the mileage may even drop off a bit.
It did, went back to 87. Finally got around to installing a tune. No sense in checking mileage on this tank. Wow, and didn't even use the race tune.
Davesorl04gt is offline   Reply With Quote
Old 12-26-2013, 01:20 PM   #64
ME Bloodhound
Staff
 
Soccerluvr4's Avatar
 
Join Date: Feb 2012
Location: Sacramento/Bay Area
Region: California
Posts: 14,672
Click image for larger version

Name:	ImageUploadedByMustang Evolution1388085567.750777.jpg
Views:	113
Size:	248.7 KB
ID:	142874
This was about 1/4 tank city driving and the rest was about 75-80mph highway cruising, with the occasional drop to 3rd to pass someone.
__________________

Bullitt build paused pending graduation

HID end all thread
Soccerluvr4 is offline   Reply With Quote
Old 01-03-2014, 03:39 AM   #65
Registered Member
Regular
 
richg93's Avatar
 
Join Date: Dec 2013
Location: Long Island, Ny
Region: New York
Posts: 59
Quote:
Originally Posted by Soccerluvr4 View Post
Just filled up last night
im interested to know which app this is! thanks

Sent from my SCH-I545 using Mustang Evolution mobile app
richg93 is offline   Reply With Quote
Old 01-03-2014, 04:40 AM   #66
slow281
Regular
Supporter
 
sixpac's Avatar
 
Join Date: Mar 2012
Location: Cedar Rapids
Region: Nebraska
Posts: 3,162
Quote:
Originally Posted by Soccerluvr4 View Post
This was about 1/4 tank city driving and the rest was about 75-80mph highway cruising, with the occasional drop to 3rd to pass someone.
My 4.6 2v

Car minder...
Attached Thumbnails
Click image for larger version

Name:	image-2900568663.jpg
Views:	73
Size:	184.6 KB
ID:	143635  
__________________
Need more Horsepower? Add a sticker. Contact me for vinyl stickers pre-made and custom!
Stick on Horsepower <- Click Here and like my Page!
2001 GT - True Blue
2003 V6 - Zinc Yellow
1990 LX 2.3 - project
sixpac is offline   Reply With Quote
Old 01-03-2014, 10:21 AM   #67
ME Bloodhound
Staff
 
Soccerluvr4's Avatar
 
Join Date: Feb 2012
Location: Sacramento/Bay Area
Region: California
Posts: 14,672
Quote:
Originally Posted by sixpac View Post
My 4.6 2v

Car minder...

I've seen the video of you driving. Even when I'm on the highway it's still aggressive driving around idiots and slow people. I can't really maintain a speed.
__________________

Bullitt build paused pending graduation

HID end all thread
Soccerluvr4 is offline   Reply With Quote
Old 01-03-2014, 10:36 AM   #68
Registered Member
Regular
 
Davesorl04gt's Avatar
 
Join Date: Nov 2013
Location: Euharlee
Region: Georgia
Posts: 165
Last fill up after the tune was 18.9 MPG 90% city driving. This is better than my grand Cherokee that has a six cylinder.
Davesorl04gt is offline   Reply With Quote
Old 01-03-2014, 12:41 PM   #69
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,412
Quote:
Originally Posted by Soccerluvr4 View Post
I've seen the video of you driving. Even when I'm on the highway it's still aggressive driving around idiots and slow people. I can't really maintain a speed.
Someone must be siphoning gas out of your car in the middle of the night...

You may have a failing 02 sensor or something.

---------- Post added at 10:39 AM ---------- Previous post was at 10:38 AM ----------

Quote:
Originally Posted by sixpac View Post
My 4.6 2v

Car minder...
That's about as good as it gets!

---------- Post added at 10:41 AM ---------- Previous post was at 10:39 AM ----------

Quote:
Originally Posted by Davesorl04gt View Post
Last fill up after the tune was 18.9 MPG 90% city driving. This is better than my grand Cherokee that has a six cylinder.
Don't do anything else to the car Dave... You're breaking the record for city mpg!
straybullitt is offline   Reply With Quote
Old 01-03-2014, 09:50 PM   #70
ME Bloodhound
Staff
 
Soccerluvr4's Avatar
 
Join Date: Feb 2012
Location: Sacramento/Bay Area
Region: California
Posts: 14,672
Quote:
Originally Posted by straybullitt View Post
Someone must be siphoning gas out of your car in the middle of the night...



You may have a failing 02 sensor or something.

---------- Post added at 10:39 AM ---------- Previous post was at 10:38 AM ----------





That's about as good as it gets!

---------- Post added at 10:41 AM ---------- Previous post was at 10:39 AM ----------





Don't do anything else to the car Dave... You're breaking the record for city mpg!

Either way I didn't buy the car for its gas mileage.
__________________

Bullitt build paused pending graduation

HID end all thread
Soccerluvr4 is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > Ford Mustang | Wrenching, Care and General Topics > General Mustang Discussion

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


» Like Us On Facebook



07:47 PM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.