How to best drive stick for mpg's - 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 02-19-2015
Member
Thread Starter
 
Join Date: Feb 2015
Location: Orlando, FL
Posts: 4
How to best drive stick for mpg's

Hey all,

I got a new 2008 Ranger XL, 2.3L, rwd, 5speed manual

I'm testing the best mpg's on her, and want to know if it's bad for the truck when I shift a bit earlier and get a bid of vibration

Those who drive stick should know what I'm talking about. The tranny and clutch are all perfect, it's just the driving method. Of course 1st gear doesn't have this, but if I shift to other gears at low enough rpm's to save on gas, there can be some vibration (not grinding, just a low vibration) until the rpm's pick back up. I would usually shift around 2k rpm, but any earlier and I'll get that vibration, especially in 3rd-5th gear. Also, if I shift to 3rd for a turn, instead of 2nd.

Is this a good practice or bad?

Thanks
Nick
Reply With Quote
  #2  
Old 02-19-2015
Fordzilla80's Avatar
YZ
iTrader: (1)
 
Join Date: Dec 2010
Location: Florida
Posts: 1,041
That vibration is the engine bogging down. I doubt it's saving gas at that point. Ford recommends the optimal rpms for shifting during acceleration and cruising in the owner's manual. Do what Ford says if you're that worried about it, but don't expect 30 mpgs out of a Ranger.
Reply With Quote
  #3  
Old 02-19-2015
IN2 FX4's Avatar
Member
 
Join Date: Feb 2005
Location: Costa Mesa, CA
Posts: 855
That is what I call 'short shifting'. This is usually a good way to increase gas mileage but lugging the engine is not good. If you are getting this vibration (lugging) at low rpm, you are shifting up too soon or letting the rpm drop to much before shifting into a lower gear. Lugging over-stresses every in the drive-train including the engine by sending continuous shock loads though it.
Reply With Quote
  #4  
Old 02-19-2015
RF Veteran
iTrader: (1)
 
Join Date: Jan 2014
Location: Vancouver, BC
Posts: 7,595
Vacuum gauge on the dash is the best way.
Don't "bog down" the engine, choose the right gear, "bogging" means low vacuum so less MPG.

Don't "coast" downhill, leave it in gear clutch pedal out.
One of the benefits of fuel injection is that fuel can be shut off when fuel isn't needed, even when engine is running.
The computer does this with in a few parameters.
If you are going downhill and engine RPMs are say 2,000, and you take your foot off the gas pedal, the computer will shut off the fuel injectors.
If RPMs get down to 1,400 the computer will restart injectors at idle level.

So if you coast downhill(foot off the gas pedal) in 3rd, 4th or OD and RPMs stay above say 1,800 you will save more fuel than if you were to shift into Neutral and coast with engine idling(burning gas).

In a carbed engine air flow set fuel use so leaving it in gear with higher RPMs while coasting downhill used more fuel, EFI is the opposite
Reply With Quote
  #5  
Old 02-19-2015
RLong31's Avatar
The Ban Hammer
iTrader: (5)
 
Join Date: Jul 2009
Location: Monrovia, IN
Posts: 2,629
Icon14

Quote:
Originally Posted by RonD View Post
Vacuum gauge on the dash is the best way.
Don't "bog down" the engine, choose the right gear, "bogging" means low vacuum so less MPG.

Don't "coast" downhill, leave it in gear clutch pedal out.
One of the benefits of fuel injection is that fuel can be shut off when fuel isn't needed, even when engine is running.
The computer does this with in a few parameters.
If you are going downhill and engine RPMs are say 2,000, and you take your foot off the gas pedal, the computer will shut off the fuel injectors.
If RPMs get down to 1,400 the computer will restart injectors at idle level.

So if you coast downhill(foot off the gas pedal) in 3rd, 4th or OD and RPMs stay above say 1,800 you will save more fuel than if you were to shift into Neutral and coast with engine idling(burning gas).

In a carbed engine air flow set fuel use so leaving it in gear with higher RPMs while coasting downhill used more fuel, EFI is the opposite
Learn something new every day. Great information.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
best stick on power brogreg New Ideas 18 03-06-2016 10:18 AM
obtaining the best mpg's for 2005 edge t gavin Drivetrain Tech 10 01-18-2008 02:40 PM
Under Drive Pulleys - Your MPG gains?? TommyC 4.0L OHV & SOHC V6 Tech 14 06-14-2007 01:05 PM
98 3.0 MPG Log (shows how mods affected MPG) Marcaronio 2.9L & 3.0L V6 Tech 23 05-11-2007 09:11 PM
Which will yeild the best mpg increase.... jtslmn720 General Ford Ranger Discussion 17 04-22-2006 09:06 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 08:18 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.