Fuel Economy

[Lugz]

Hey Guys i'm new too the Land Rover world with a 97 disco, so far i've done a 2 inch lovells lift and fitted the 33x12.5 R15 Muddies on after i came across some nicely offset rims. The only concern I have though is the fuel consumption even before I did my few little mods, On a tank of unleaded i'm only getting just over 350km, I have always know that they had a bad name for fuel guzzeling (the 3.9L) But I didn't realize they were that bad. any tips on what i can do such as snorkel, K&N air filter....... any knowlege passed on would be much welcome as I used too be a Cruiser boy and the old diesels were easy as.

Cheers Mark

[RonMcGr]

Hey Guys i'm new too the Land Rover world with a 97 disco, so far i've done a 2 inch lovells lift and fitted the 33x12.5 R15 Muddies on after i came across some nicely offset rims. The only concern I have though is the fuel consumption even before I did my few little mods, On a tank of unleaded i'm only getting just over 350km, I have always know that they had a bad name for fuel guzzeling (the 3.9L) But I didn't realize they were that bad. any tips on what i can do such as snorkel, K&N air filter....... any knowlege passed on would be much welcome as I used too be a Cruiser boy and the old diesels were easy as.

Cheers Mark

Mark,

That is a good mileage :D

Tips?

Put a block of wood under the excellerator :D
Keep the weight down.
Lower it to decrease wind drag.

And the best till last.... fit a 6.5 litre Hummer diesel in it :eek:

Only kidding, however they do love fuel..

Cheers,

[rick130]

Welcome Lugz !

Can't really help anymore than Ron, as I was going to say sell it and get a Tdi or Disco II with a TD5 if you want economy :D

Can you tell that I drive an oil burner ;)

Pedro the Swift will be along soon to tell you Ron and I are just trouble makers and worship at the dark, oily altar.
I'm sure a few of the blokes here will be better help than we have so far. :lol2:

[Bazzle218]

Mate check out my threads for some good advice. I know it sounds strange but check thermostat is not stuck open. My 93 3.5 was running cool under 1/2 on the gauge. Put new thermo in now runs at dead on 1/2 in Townsville with Aircon going. Check maf and stepper motor set as per forums .
I followed the above advice as recieved from other members and the beast cracked over 400ks town driving. :p

[B92 8NW]

Certainly don't put a K&N in to increase fuel economy. Remember that with such large tyres your mileage will be out. You could be adding 10-15% to that figure of 350km (someone will do the maths) to get the real mileage.

[Jezzaol]

I went down to 200km out of a tank with 35's and beadlocks, then changed my diff centres to 4.11's and got the gearing back to standard, now im back to 300km around town, and when I take my comp tyres off it should get better again. Im interested if any one else running 35's on a 3.9 would have any fuel results ?

Cheers

[Lugz]

cheers guys, I'm over the dirty world of the old oilers for a while..... jokes but cheers for the help anywas i appreciate it!

[rick130]

Lugz, in all seriousness do a search, there are many threads on here regarding the V8's.
I'm a little surprised the V8 boys haven't seen this thread yet :confused:

[RonMcGr]

Filled mine up today!

270 km used 59 litres :eek:

Hi time I dragged the Jaguar XJ6 out of the shed.
200 on 50 litres of LPG.

The cost?
118cpl Disco
59cpl Jaguar.

The low slung one has it!
Refueled it today and had not driven it for 4 weeks.
Boy do those things fly, and so smooth :BigThumb: !!!!!

Mind you, I love the sound of the DV8 :D

Cheers,

[Rovernaut]

Hey Guys i'm new too the Land Rover world with a 97 disco, so far i've done a 2 inch lovells lift and fitted the 33x12.5 R15 Muddies on after i came across some nicely offset rims. The only concern I have though is the fuel consumption even before I did my few little mods, On a tank of unleaded i'm only getting just over 350km, I have always know that they had a bad name for fuel guzzeling (the 3.9L) But I didn't realize they were that bad. any tips on what i can do such as snorkel, K&N air filter....... any knowlege passed on would be much welcome as I used too be a Cruiser boy and the old diesels were easy as.

Cheers Mark
Lugz, the MAF on a Disco is Mega $ to replace, KN filters have been know to damage the MAF with oil contamination.

[silverhammer]

On my Disco V8 have fitted Defender high transfer case ratios and 245/7516 Coopers. Makes a world of difference, speedo is within a bee's wick of spoton and it gets up and goes. Lower 1st gear, also 300 more rpm at 100km/hr means the V8 is able to get up more where the torque is. 2125rpm standard transfer case ratio for 100km/hr is no-go zone, IMHO. I can now overtake in 5th with reasonable acceleration. BUT economy is better, as I guess the motor is spinning freely with less loading up.

[Andrew]

You should get., around 500 k, (Thats what i get Auto 3.9, light foot) on most runs.

i recently came down from QLD, at a good speed 120-125, nd was getting 600k to a tank, just be gentle, and take all of the crap of the car if you wont anything close to good economy!

[Hucksta]

g'day mate,

Just caught your thread about fuel economy. I run a 99 Disco 3.9 manual and get about 500 to 520 from a 89 litre tank around town. y trick is to keep the car light and not to go over 2,500 revs in any gear unless i have to. If you stick to that rule you should find your consumption rate gets better. Other than that I just keep the engine clean, serviced regularly and make her feel good.

Hope this helps