How many miles to a tank with 4 cylinder. - Ranger-Forums - The Ultimate Ford Ranger Resource


General Ford Ranger Discussion General discussion of the Ford Ranger that does not fit in any other sub-forum.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 10-17-2016
Member
Thread Starter
 
Join Date: Sep 2016
Location: Collins
Posts: 27
How many miles to a tank with 4 cylinder.

I've had my 98 2.5 5 speed for a couple months now and had been getting steady low 20s. Not highway, not city, mostly running around on gravel/side roads at 25-50mph. Was running 235/75-16 tires and 3.45 gears. I was averaging around 250 miles to a tank, but the speedometer wasn't correct because of the tires.

I just filled up after installing new plugs (Motorcraft Platinum) and wires and an 8.8 4.10 spooled rear. I was hoping the mileage was improved, but I got an underwhelming 270 miles on 14 gallons, or around 20mpg. The speedometer is accurate now.

The truck runs just fine, although it's been setting a P0171 since I got it that I haven't been able to figure out. I've looked and looked for a vacuum leak but haven't found one.

What do you guys get out of a tank?
Reply With Quote
  #2  
Old 10-18-2016
RF Veteran
iTrader: (1)
 
Join Date: Jan 2014
Location: Vancouver, BC
Posts: 7,142
If O2 sensor is original change it, just the one by exhaust manifold not the one behind Cat Converter.

P0171 means computer is running the engine Rich because O2 is seeing too much Oxygen in the exhaust(Lean), so MPG will be low
Make sure you don't have an exhaust manifold leak, that sucks in oxygen and O2 will report false Lean.
Older O2's, over 100,000 miles, start to fail Lean, so computer runs engine richer, so worth while to replace O2 sensor when you get over 100k miles, 150k for sure

Also Clean the MAF sensor, always, anytime you have a Lean or Rich code
Reply With Quote
  #3  
Old 10-18-2016
Member
Thread Starter
 
Join Date: Sep 2016
Location: Collins
Posts: 27
I replaced the pre-cat 02 a couple months ago. Exhaust is quiet and leak free.

I haven't messed with the MAF, but I will clean it just to see what happens.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
how many miles is too many? mcdonald58 General Ford Ranger Discussion 6 03-10-2015 07:19 PM
How many miles is too many miles? Liftedgreen4x4 General Ford Discussion 10 08-08-2012 10:10 PM
How many miles are too many miles ? TNRanger23 General Ford Discussion 4 11-10-2011 04:38 AM
how many miles are too many? DillonT General Ford Ranger Discussion 20 04-18-2009 03:19 PM
how many miles can I get on a tank? '91 xlt Bhavesh 2.9L & 3.0L V6 Tech 3 10-24-2006 10:50 PM


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



All times are GMT -6. The time now is 02:14 PM.