Go Back   F150online Forums > Powertrain & Mechanical > V8 Engines
Sign in using an external account
Register Forgot Password?

Welcome to F150Online Forums!
Welcome to F150Online.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community 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 fast, simple and absolutely free so please, join the F150Online Forums community today!





Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
  #1  
Old 11-06-2004, 04:29 AM
Junior Member
 
Join Date: Nov 2004
Posts: 2
Question 302 mileage...

Hi all. I have a 89 f150 4x4 with the 302 and gas mileage is poor. Getting around 11-12 mpg . Any ideas on how to improve my gas mileage?

Thanks.
Reply With Quote
  #2  
Old 11-06-2004, 10:53 AM
Senior Member
 
Join Date: May 2000
Posts: 4,761
Welcome ! That sounds typical for that engine in a heavy 4X4 configuration. A few mods like electric fans, etc. will help mpg marginally, but will not generally offset the cost for a long time. IMO, keeping the tune and maintenance in top condition is your best bet.
Reply With Quote
  #3  
Old 11-09-2004, 12:48 AM
Junior Member
 
Join Date: Nov 2004
Posts: 2
How about something like a k&n air filter? Would that affect my mileage at all? Was also wondering what the difference is between just the filter and a cold air intake system?
Reply With Quote
  #4  
Old 11-09-2004, 10:11 AM
Senior Member
 
Join Date: Oct 2004
Location: East Texas
Vehicle: 2010 GMC Sierra
Posts: 368
My 90 302 with a K&N air filter and dual exhaust gets about 12-13, maybe 14 on a real good day with conserative driving, so you're about right as far as mileage goes. These truck were never really set up to get good mileage, so don't expect mods to give you a drastic improvement.
Reply With Quote
  #5  
Old 11-09-2004, 10:15 AM
Senior Member
 
Join Date: May 2000
Posts: 4,761
The K&N filter material allows increased airflow which increases power. They are wonderful products that I highly recommend for performance, but not increased mpg. Any mpg increase would be negligible. The drop-in filter will just increase air flow over the restrictive, traditional paper filter. The complete air intake kits have pre-engineered/larger/smoother components that increase airflow as well as a larger filtering area.
Reply With Quote
  #6  
Old 11-10-2004, 01:10 PM
Senior Member
 
Join Date: Oct 2004
Location: Nashville, TN
Vehicle: 2001 Ford F-150
Posts: 386
Send a message via AIM to WVtrucker
My 88 4x4 302 did 12 mpg city, highway, mountains, climbing trees, in 4x4, WOT or grampa style... etc. etc. didn't seem to matter what I did. The only time it did better was on a trip to SC where believe it or not it did 20 mpg from Whytheville VA, into Greenville, SC (all down hill of course. Sorry to be the bearer of bad news.
Reply With Quote
  #7  
Old 11-10-2004, 06:10 PM
Account Suspended For Violation of Terms of Service
 
Join Date: Aug 2004
Vehicle: 1994 ford f-150
Posts: 260
dang! you guys are all lucky! i dont know why you are complaining. my 302 only gets 6 mpg and thats when i'm on the highway. what can i do to make it better on gas?
Reply With Quote
  #8  
Old 11-10-2004, 10:22 PM
AWH AWH is offline
Senior Member
 
Join Date: Sep 2003
Location: AZ
Vehicle: 1997 Ford F150
Posts: 114
C'mon PiperC...does your fuel tank have some holes in it?
Even my 1968 F-100 with a 4 barrel carb. and 390 got 8-9 MPG.

FYI My 94 302 4x4 was getting about 13 around town and 15 on the road...and I changed the plugs and wires annually along with the fuel filter. I don't think I could have asked for much more out of that truck in terms of fuel economy.

Last edited by AWH; 11-10-2004 at 10:25 PM.
Reply With Quote
  #9  
Old 11-10-2004, 10:33 PM
Account Suspended For Violation of Terms of Service
 
Join Date: Aug 2004
Vehicle: 1994 ford f-150
Posts: 260
no, but it runs pretty bad. i'll have to fix it sometime
Reply With Quote
  #10  
Old 11-10-2004, 11:55 PM
Member
 
Join Date: Mar 2003
Location: Ponchatoula, La.
Vehicle: 2003 Ford F250 4X4 7.3 PS
Posts: 38
The notorious 302 ???? I've had several 302's in pick-ups over the years and everyone was different in power and mileage. One got 19/20 mpg consistantly in a '79 Lariat. Had an '85 Lariat that got 12/13 with less power. ??? I never understood it!
Reply With Quote
  #11  
Old 11-11-2004, 01:31 PM
Senior Member
 
Join Date: Oct 2004
Location: Nashville, TN
Vehicle: 2001 Ford F-150
Posts: 386
Send a message via AIM to WVtrucker
This is what happens when you put an okay car motor in a pickup then you slap all the emmissions crap on it. My 302 in my 88 didn't really start making power until 4K rpm. Saddly I am seeing the same trend with my 4.6 but at least if the power is gonna be down a little I get a little mileage in return. I miss my 5.3 GMC when gettng up those on-ramps in tight spaces.
Reply With Quote
Old 11-11-2004, 01:31 PM


 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


All times are GMT -4. The time now is 07:50 PM.


 
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. FordŽ is a registered trademark of the Ford Motor Company
Contact Us Advertising Privacy Statement Terms of Service Jobs Forum Text Archives
Emails & Contact Details