Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: neilhull on December 01, 2008, 03:09:21 PM

Title: possible or not ?
Post by: neilhull on December 01, 2008, 03:09:21 PM
HI Is it possible that i get 25-29 mpg from my 4l 1997 xj cherokee .
 If it is why bother with gas . When i do a steady 55-60 mph the onboard computer says i am getting 25 mph. Great then i looked in the hand book and there's a sticker says i have to multiply by 1.5 to get UK mpg is this possible try multiplying 25x 1.5  :-D
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Post by: dxmedia on December 01, 2008, 03:44:44 PM
No ;)
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Post by: Mike Pavelin on December 01, 2008, 03:46:55 PM
You can get 25 if you drive very carefully all the time and stay away from traffic, but this will really aggravate photocopier salemen in leased Audis.
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Post by: tim_aka_tim on December 01, 2008, 03:58:57 PM
The handbook is full of shit. You need to multiply by 1.2, not 1.5 to get from US gallons (the old UK wine gallon of 3.8 litres) to imperial gallons (of 4.54 litres).

Therefore, 19 x 1.2 = 22.8mpg
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Post by: Dave69 on December 01, 2008, 04:39:56 PM
on lpg you get the same economy but it is cheaper to fill the tank each time
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Post by: big g on December 01, 2008, 06:38:37 PM
I think you're doing well to avg 19 :shock:

Mine is 11 or 11.1 depending on which way the wind's blowin'
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Post by: neilhull on December 01, 2008, 07:01:14 PM
Quote from: "tim_aka_tim"
The handbook is full of shit. You need to multiply by 1.2, not 1.5 to get from US gallons (the old UK wine gallon of 3.8 litres) to imperial gallons (of 4.54 litres).

Therefore, 19 x 1.2 = 22.8mpg


 Not bad for a 4l 4x4  far better than a rr  disco  and not mutch less than my  daihatsu terios 1.3l  26mpg
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Post by: Big Stew on December 01, 2008, 09:28:24 PM
I have a 1999 4.7 V8 and get 10 towing and about 14 solo thats on LPG.
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Post by: Bishops Finger on December 01, 2008, 10:48:37 PM
Err am I little stew then...?

My ZG gets @22-26 on proper petrol n stuff...when it works... :roll:
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Post by: mack on December 02, 2008, 09:27:07 AM
My average using the 'puter is about 22 mpg, that's usually over several hundred/up to a thousand miles before each re-set.

I managed 25-26 mpg on a return trip up to Inverness on the A9, just taking it reasonably easy with cruise control in operation.

If you use it in stop-start traffic, e.g. town driving consistently then it will be lower. I do a wide mix between town, A roads and motorway so I suppose that can keep my average up a bit.
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Post by: Big Stew on December 02, 2008, 10:58:14 AM
Quote from: "Bishops Finger"
Err am I little stew then...?

My ZG gets @22-26 on proper petrol n stuff...when it works... :-D
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Post by: Bishops Finger on December 02, 2008, 12:58:55 PM
Im not................... :lol:
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Post by: MOCAJ on December 02, 2008, 06:50:46 PM
True

Nor me  8-)
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Post by: isle of man on December 02, 2008, 06:51:54 PM
8MPG less off road.
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Post by: GermanXJ on December 02, 2008, 08:07:19 PM
HAHAHAHAHAHAHHAHAHAHAHA HELL NO
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Post by: jgsmuzzy on December 03, 2008, 12:54:42 PM
I average 17mpg, but managed 24mpg on the run back from france, where I obviously kept to the speed limit all the way  :wink: