Go Back   MustangForums.com > Ford Mustang Tech > V6 (1994-2004) Mustangs
Sign in using an external account
Register Forgot Password?
Search


V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters
Sponsored by Optima Batteries


Welcome to Mustang Forums!
Welcome to Mustang Forums.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


What's your gas mileage?

Reply
 
 
 
 
Thread Tools Search this Thread
Old 05-26-2013, 09:38 PM   #1
302_Mustang
1st Gear Member
 
Join Date: May 2013
Vehicle: 1999, Ford, Mustang
Location: Delaware
Posts: 58
Reterm
Default What's your gas mileage?

I'm curious about the gas mileage that other people get on their V6s. I had a '99 Mustang V6 3.8L 5-speed with K&N cold air intake, Full tune up including fuel filter. Custom H pipe with new front 02 sensor and only got 125 Miles to the tank. I would let it run till the low fuel light almost popped up. When I did the Miles per tank test. Having a 15 Gal fuel tank that averages 8.3 MPG! I drive normally and shift at around 3000 RPM and not take off hard at lights. I tried looking everywhere to see how I could increase my MPG and I even tried adding fuel system cleaner.

I'm just wondering what do you guys average on MPG and miles per tank?


I sold my V6 and got a GT. it's not as expensive as people say they are. Insurance only went up around $50 every six months and as for the bad gas mileage I was already used to it lol.
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!
302_Mustang is offline   Reply With Quote
Old 05-26-2013, 10:28 PM   #2
Red8310
1st Gear Member
 
Red8310's Avatar
 
Join Date: Apr 2013
Vehicle: 1997, Mustang, Cobra Saleen
Location: South Dakota
Posts: 68
Default

I haven't had a v6 stang before.. but gas mileage per tank has sooooo many variables such as where you pump, what kind of gas, how you drive, highway/city driving.

8.3 MPG doesn't sound right at all! and 125 miles on a tank is VERY bad, either somethings terribly wrong with your car or you did the experiment wrong.. My modified 4.6 does better than that (not by much lol)

Last edited by Red8310; 05-27-2013 at 12:13 AM.
Red8310 is offline   Reply With Quote
Old 05-27-2013, 12:01 AM   #3
duaner
 
Join Date: Jan 2012
Vehicle: 2008 Ford Mustang
Location: IL
Posts: 30
Default

I have an '08 4.0. I recently made a trip to Florida from Illinois. Total miles for trip was about 3500. I averaged 28 mpg for the trip. The car now has about 82000 miles on it.
duaner is offline   Reply With Quote
Old 05-27-2013, 04:07 AM   #4
gt281
 
gt281's Avatar
 
Join Date: Jun 2006
Location:
Posts: 29
Send a message via Yahoo to gt281
Default

8.3mpg? You must have something very wrong or are actually flooring it everywhere. Also you can't arbitrarily say "15 gallon tank, 125 miles = ...mpg". It doesn't work like that. You have to divide the miles you drove by the actual gallons you put in when you fill up. I usually can only get 12.5-13 gallons in when the low fuel light is on. My 02 V6 auto gets 21 average and as high as 27 on mostly interstate trips. My 00 v6 auto gets 24mpg and 29 on interstate runs. The main difference is that the 00 has lighter wheels and skinnier tires. Both cars are mechanically stock. My 01 GT manual gets 21mpg and I'm not exactly easy on it. Even if you weren't figuring it correctly 125 miles/tank means there is a problem.
gt281 is offline   Reply With Quote
Old 05-27-2013, 06:31 AM   #5
302_Mustang
1st Gear Member
 
Join Date: May 2013
Vehicle: 1999, Ford, Mustang
Location: Delaware
Posts: 58
Reterm
Default

I just estimated real quick but even if I divide 125 by 12 it's 10.4 MPG. If it was city driving I could understand but it sort of high way driving since the speed limit is 55 and there are few lights. There was no way of explaining how bad my MPG was. The only problem I did notice was that the Secondary Air Injection Vlave had a very tiny hole but I doubt that would kill my MPG in half
302_Mustang is offline   Reply With Quote
Old 05-27-2013, 12:11 PM   #6
Red8310
1st Gear Member
 
Red8310's Avatar
 
Join Date: Apr 2013
Vehicle: 1997, Mustang, Cobra Saleen
Location: South Dakota
Posts: 68
Default

Run some gas/oil treatment and see if that helps at all. But id start will filling up at 1/4 tank, and then reset the trip, then waiting till you reach 1/4 tank again.
Red8310 is offline   Reply With Quote
Old 05-27-2013, 02:30 PM   #7
Toadster
1st Gear Member
 
Toadster's Avatar
 
Join Date: Apr 2013
Vehicle: 2000, Ford, Mustang
Location: CA
Posts: 122
Default

http://www.fuelly.com/car/ford/mustang
Toadster is offline   Reply With Quote
Old 05-29-2013, 03:37 PM   #8
TomKat
3rd Gear Member
 
Join Date: May 2008
Vehicle: 65' Mustang, 04' Mustang v6
Location: Ca
Posts: 826
Default

i average atleast 20 on the highway thats mixed driving 65-75. city is pretty poor 15/17. 2004 3.9 auto

Last edited by TomKat; 05-30-2013 at 12:38 PM.
TomKat is offline   Reply With Quote
Old 05-29-2013, 10:44 PM   #9
Local
 
Join Date: May 2013
Vehicle: '99 Mustang Coupe
Location: CO
Posts: 8
Ekrin
Post ...

I just recently got my 99, V6, 5 speed, stick-shift Stang
and I've only filled it up twice. Both times I got it up to
around 265-280 miles per tank, and the tank is 15.7
gallons. And yea, I did make it overspill on accident by
filling it up and did purposefully almost make it run out of
gas solely for the sake of these 'new car' tests. I just got
it so I'm still playing with it and going hard from red lights
to green lights! So I'm going through gas just a little bit
quicker but man oh man is it fun.

I recently just went on a short trip and starting using some
Lucas Upper Cylinder Lubricant to take care some of the
engine noises and help the engine out, and it's suppose to
help with MPG over time. I'll have to wait on my next fill up
and test that out but as for now it's been cleaning up the
noises and making it smoother. Maybe overtime I can get it
up to 300 miles per tank, who knows. As for the miles per
gallon on HW and in-town I haven't had the chance to test
that scenario out because I've been doing both off and on.

Local is offline   Reply With Quote
Old 05-30-2013, 05:48 PM   #10
Atvnut719
 
Join Date: May 2013
Vehicle: 2003 Ford Mustang
Location: Florida
Posts: 3
Default

Hey guys new to the site. Saw this and wanted to add in. I've got a 2003 with the V6 and auto, currently 215k miles on it. Only mods are aftermarket mufflers and a K&N filter. I'm getting 25-27 highway and 20ish city. Additionally, I do tow a small trailer and my ATV between Florida and North Carolina and I averaged 19mpg running 70 with the AC on the whole trip lol. Just in case anyone wondered what their towing MPG was.
Atvnut719 is offline   Reply With Quote
Old 05-30-2013, 07:30 PM   #11
jthorn9
The Godfather
 
jthorn9's Avatar
 
Join Date: Sep 2005
Vehicle: 2013 Mustang GT CS
Location: College Station, Texas
Posts: 15,433
Jeremy Thorner jthorn9
Default

Mustangs aren't rated for towing, and it's not a wise idea to be towing anything in your car. Your subframe, and drive train are not setup to haul loads.

As far as the OP I'll play, here's what each of my Mustangs got MPG wise:

98 Mustang V6: average 23 mpg, best 29 mpg
00 Mustang V6: average 22 mpg, best 26 mpg
95 Mustang 5.0: average 21 mpg, best 24 mpg
99 Mustang Cobra: average 22 mpg, best 27 mpg
97 Mustang GT: average 22 mpg (never tested a best, didn't drive it much)
08 Mustang GT: average 22 mpg, best 28 mpg
11 Mustang V6a: average 23 mpg, best 32 mpg
__________________
13 Mustang GT CS - 380 RWHP 370 TQ
13 Mustang V6 PP - 270 RWHP 260 TQ

95 Mustang SVO - 400 RWHP 400 TQ sold
08 Mustang GT - 285 RWHP 305 TQ sold
99 Mustang Cobra - 280 RWHP 290 TQ sold
11 Mustang V6 - 270 RWHP 260 TQ sold
97 Mustang GT - 190 RWHP 250 TQ sold
00 Mustang V6 - 145 RWHP 184 TQ sold
98 Mustang V6 - 125 RWHP 210 TQ sold
jthorn9 is offline   Reply With Quote
Old 05-31-2013, 01:44 PM   #12
Scarecrow92
 
Join Date: May 2013
Vehicle: 1985 Ford Mustang GT
Location: North Carolina
Posts: 1
Default

Quote:
Originally Posted by jthorn9 View Post
Mustangs aren't rated for towing, and it's not a wise idea to be towing anything in your car. Your subframe, and drive train are not setup to haul loads.

As far as the OP I'll play, here's what each of my Mustangs got MPG wise:

98 Mustang V6: average 23 mpg, best 29 mpg
00 Mustang V6: average 22 mpg, best 26 mpg
95 Mustang 5.0: average 21 mpg, best 24 mpg
99 Mustang Cobra: average 22 mpg, best 27 mpg
97 Mustang GT: average 22 mpg (never tested a best, didn't drive it much)
08 Mustang GT: average 22 mpg, best 28 mpg
11 Mustang V6a: average 23 mpg, best 32 mpg
Click the image to open in full size.
Scarecrow92 is offline   Reply With Quote
Old 05-31-2013, 04:49 PM   #13
Kel
 
Join Date: May 2013
Vehicle: 1996 Ford Mustang
Location: WA
Posts: 2
Default

I have a 96 3.8L. I average about 28 mpg city and 33 highway. Recently I made 35.46 mpg after a 266 mile trip down I-5, which has been my best so far after owning the car for only 2 months. I have installed CAI but everything else stock to my knowledge.
Kel is offline   Reply With Quote
Old 05-31-2013, 05:59 PM   #14
TomKat
3rd Gear Member
 
Join Date: May 2008
Vehicle: 65' Mustang, 04' Mustang v6
Location: Ca
Posts: 826
Default

scarecrow lol
TomKat is offline   Reply With Quote
Old 06-03-2013, 08:39 AM   #15
99austin99
 
99austin99's Avatar
 
Join Date: Mar 2013
Vehicle: 2004 Ford Mustang 3.9L
Location: MD
Posts: 45
Default

back home in Oregon, i was averaging 25MPG.... driving down I-80 to maryland i was getting 28MPG with a fully loaded car (several duffel bags, golf clubs, all my army gear, 2 12 inch subs in the back, and a couple boxes) but since i got to MD driving a mix of city/HWY/mountains im only getting about 20-21 with only subs in the back. i just moved into a new house, and im now using 4 gallons of gas a day to get to and from work. anybody know how to improve this with out getting a new car?
__________________
2004 3.9
Competition Orange
no current mods

Last edited by 99austin99; 06-03-2013 at 08:42 AM.
99austin99 is offline   Reply With Quote
Old 06-08-2013, 10:21 AM   #16
red racer 03
 
Join Date: Jun 2013
Vehicle: 03 ford mustang
Location: IA
Posts: 5
Default

i average abt 24 back and forth to work abt 70% highway miles. best ever tank was 27
red racer 03 is offline   Reply With Quote
Old 06-08-2013, 10:21 AM
MustangForums
Ford Mustang




Paid Advertisement

 
 
 
Reply

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 Off
Refbacks are Off

Forum Jump

Advertising

Featured Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 12:01 AM.

© Internet Brands, Inc.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
Emails Backup