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[jarekjeep]

i know its juicy but,,,
13.0litres every 100km (around 22mpg-imperial) when driving motorway with cruise contol set on 70mph is it ok?
please write how juicy is your -dont tell me once it was 40mpg , or once it was 8mpg. please detail town mpg/motorway mpg/your opinion about mine mpg.
let it be in the form:

2rd all the way
M -22mpg at 70mph
T -15mpg at various speed, start/stop traffic etc
your (i mean mine) is s... or bit to juicy or whatever.

thanx

[Lornaben]

Perm 4WD
M - 26+ cruise on at 75
T - 15 with a heavy foot 
 

[Jeepjedi]

get a tune up  

[jarekjeep]

Are you serious Lornaben? 26+ when cruise on 75mph

[jarekjeep]

jeepjedi who you want to tune up?

[Brynjaminjones]

According to the computer I average 17.1mpg, and that's a lot of short journeys in country lanes, plus about 40 minutes on fairly hilly 60mph roads a few days per week. I do like to make use of overtaking lanes though, particularly when some idiot in a lowered Corsa thinks that he out-accelerate me going up a large hill!  

Forgot to mention - that's in full-time 4wd

[jarekjeep]

thanx brynjaminjones. is it something wrong with mine xj or my style of driving. i did 13.5 on motorway in pensioner way. maybe it was to slow

[Lornaben]

Are you serious Lornaben? 26+ when cruise on 75mph

Yep. serious.
Don't forget your Jeep is telling you american mpg, you need to convert it to real mpg (imperial) your 22 is really 26.4 

[jarekjeep]

my on board comp says just the temp and direction im going cause its 96 model. i did calculate it. i did fill to full, then i drive 26o miles on motorway -had to go pick up tyres- and re fill to full again. on receipt i had quantity of petrol i have refill and had a mileage of my journey. i did calculate it in km/100kilometers and converted it to imperial mpg. its still to much, dont you think?

[Nosebolt]

Mines a ZJ but same basic engine and I get 31mpg at 65mph and 18mpg around town with my normal sedate driving, using the loud peddle it's single figures.

and there is a full set of calculators here on Birtys

[bgbazz]

If it were me, I would follow Mr Jedi and get a tune and a full service first. Something as simple as a cruddy air cleaner element can cause high fuel consumption..and so can the wrong tyre pressures!
Start with the simple things and work your way up. 

[isle of man]

What is fuel consumption?? It needs fuel you put it in!!!!

[daggie]

 

[Panic mechanic!]

if it s that bad it could be down to the Oxygen sensor not working or on its last legs

[donk498]

When you can get 65 miles to 75 litres of lpg then you have to worry. (fucked  stat) Your mpg sounds about right for a normal xj. I run around 13 mpg average.

[johnboybop]

i get 14 mpg n0 matter how i drive, cant remember the last time i did over 55 mph,
its about 150 miles per tank, big tyres on an offroader,

[jarekjeep]

motorway- 4x4 ft at cruise control set on72mpg -22mpg
town -Londons rush hours 4x4ft -15mpg

[Dave69]

 

i got the same with 33's and 6" lift

got it in the 10 when heavy on the right foot

[jarekjeep]

  upps, i have no mods-just mud tyres. looks bad. before test changed filters and oil, plugs -looks ok-did not change. should i do it?

[daggie]

swmbos xj averages 18-20 mpg 

[jarekjeep]

anyone? come on, please. how many miles you do on gallon. Town /motorway.

[daggie]

anyone? come on, please. how many miles you do on gallon. Town /motorway.

swmbos xj averages 18-20 mpg 

 

[Bubba]

on the overhead thing i get 16 normal 20 on a run so buy the time you convert the figures its still thirsty

[JamesH]

20 mpg average is about right.

New spark plugs, wires, distributor cap, rotor arm, air filter and O2 sensors can all help with mpg but it's never going to be economical

[j33pky]

4ltr 2 door xj with a manual box does 16 around town and i can get 30 if i drive just below 70 on the motorway.