Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: Anonymous on July 13, 2006, 09:17:41 PM

Title: Consumption
Post by: Anonymous on July 13, 2006, 09:17:41 PM
Will it make a huge difference in fuel consumption if I run my truck in permanent 4wd instead of just 2wd??
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Post by: greggmo on July 13, 2006, 09:23:05 PM
recon.
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Post by: Mike Pavelin on July 13, 2006, 09:53:14 PM
No. you're pushing the front axle round and prop with the rear drive anyway.
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Post by: chrisjones on July 13, 2006, 10:17:53 PM
I gotta say, I've never noticed any real difference.  Like mike says, the axle and prop are still going round in 2WD since there's no free wheel on an XJ.
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Post by: tim_aka_tim on July 13, 2006, 11:47:27 PM
I've read this being debated on various forums at length. The consensus seems to be that you might get 1mpg more in 2wd (I'm making no judgements, I always use 4wd). That said, muds are generally crap on the road, and my bfgs are scary in 2wd in the wet, so I'd rather have the piece of mind of knowing I've got some grip rather than knowing that while I'm in my hospital bed, at least I've go a few pence left over.
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Post by: daggie on July 14, 2006, 06:14:53 AM
no difference, it will probably drive better too
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Post by: king cj on July 14, 2006, 08:37:53 AM
yeah but think of all the fuel you will be saveing while your in hospital not driveing your jeep :D
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Post by: lefty on July 14, 2006, 10:27:19 AM
Quote
said, muds are generally crap on the road, and my bfgs are scary in 2wd in the wet


Tiz true, i generally leave mine in 2wd in the dry and use 4wd in the wet or when it's a bit greasy. In the dry, it's got a surprising amount of grip at the back end (I found taking the rear roll bar off actually reduced the oversteer). in the wet 2wd on muds is a fookin liability  :wink:
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Post by: Anonymous on July 14, 2006, 03:49:49 PM
2wd, muds and rain = fun

Us Wrangler drivers don't get a choice of 4wd... we just learn to drive  :twisted:
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Post by: Mort on July 14, 2006, 03:57:47 PM
Checked this on Trish's XJ. 1 MPG or less difference in 4WD.  Wouldn't run it in anything else now.
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Post by: Anonymous on July 14, 2006, 04:08:13 PM
Quote from: "EvilEd"
2wd, muds and rain = fun

Us Wrangler drivers don't get a choice of 4wd... we just learn to drive  :imwitstupid: only girls drive in 4wd on the road!!! 8)
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Post by: Anonymous on July 14, 2006, 04:20:03 PM
Talking of which saw what looked like a restored Sierra XR4x4 today...

NOW that was a full time 4x4 you could drive the bollocks off on a wet road :twisted:  :D
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Post by: Anonymous on July 14, 2006, 04:38:55 PM
I have to agree with EE - although I am still learning -  as muds are a permanant fixture at the mo!!!
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Post by: Anonymous on July 14, 2006, 04:53:46 PM
So they should be..... :lol:
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Post by: chrisjones on July 14, 2006, 07:33:35 PM
Quote from: "The Kitchen Devil"
Quote from: "EvilEd"
2wd, muds and rain = fun

Us Wrangler drivers don't get a choice of 4wd... we just learn to drive  :imwitstupid: only girls drive in 4wd on the road!!! :imwitstupid:
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Post by: Psychoman on July 14, 2006, 08:27:33 PM
Quote from: "The Kitchen Devil"
Quote from: "EvilEd"
2wd, muds and rain = fun

Us Wrangler drivers don't get a choice of 4wd... we just learn to drive  :imwitstupid: only girls drive in 4wd on the road!!! 8)


Completely agree - one of the best things about a 4 Cherry is hanging the arse out. 4wd = boring, 2wd = fun. Just my twopenneth worth. Ran mine on a 3.5" lift and 31/10.5/15 MTs and loved every minute...
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Post by: Mort on July 15, 2006, 08:48:37 AM
Hooligan!  :wink:
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Post by: Plum on July 15, 2006, 10:10:40 AM
Ive ad more fun in 2wd than 4 . . . . lots more . . .

an as for fuel 264 miles to a tank full in 2wd . . . . . . an . . . . . 260 in 4wd now thats bugger all . . . . . . most likely me foot . . . . . .

However  people say to keep in 4wd is best ? ? ? but no one says exactly why  ? ? ?
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Post by: Mort on July 15, 2006, 12:16:48 PM
Quote from: "Plum"
Ive ad more fun in 2wd than 4 . . . . lots more . . .

an as for fuel 264 miles to a tank full in 2wd . . . . . . an . . . . . 260 in 4wd now thats bugger all . . . . . . most likely me foot . . . . . .

However  people say to keep in 4wd is best ? ? ? but no one says exactly why  ? ? ?


Keeps tyre wear more even, better handling in all conditions (unless you want to get the back out), halves the tractive load on the drive wheels, so you're less likely to get wheelspin when you boot it in the wet....... there's probably more, but it's time for lunch!  8)
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Post by: Plum on July 15, 2006, 03:34:33 PM
Wellllll,   that about sorts it out,   ill leave it in 2wd unless 4wd needed as i said before itis much more fun . . . . . . yeah . . . . . . . .

cheers for info Mort . . . . . .