12 mpg ?

[kida4ever]

right ive took the 2" body lift off and put the orginal wheels back on and now its done 90kms on £15 so its getting better

[theraeteam]

12mpg??

so 90 x .62 = 56miles £15 = 15ltrs ..15/4.54= 3.3 gallons 56 miles / 3.3 = roughly 17 miles to the gallon.. ive just put 25 quid in mine roughly half a tank and ill post my findings up when light comes on , most of my journeys are stop starts , ie school run total one and a half miles , to and from work one and a half miles so maybe this is not helping....... with fuel economy

[kida4ever]

they are the kind of trips iam makeing in it at the moment

[PDR]

I think before you do anything else you should check for definite that your milometer is reading in Kilometers not miles. Find a stretch of road of a known length (say about 5 miles). Zero the trip meter then drive the route. If your milometer shows 5 then it's correct. If it shows around 8 then it's still reading in kilometers. As said, if you can get 310 miles out of a full tank then you are doing well, whereas 15-16 mpg is really crap unless it's a V6 petrol.

Now you know why I boast about having the most powerful factory engine option........ got to make myself feel better somehow

[adpsimpson]

ive just put 25 quid in mine roughly half a tank and ill post my findings up when light comes on...

Half-filling will never give you anything more than a very rough idea. Need to fill to the brim, reset the trip counter, then whenever you feel like it fill to the brim again. The fuel in the second fill and the miles from the first fill are what to go on - you're replacing the fuel used to do those miles.

We picked up the 3.0 in Poole, drove to Cairnryan (27mpg, motorway at 70mph), then drove around here a bit, let a couple of friends drive for a play (22mpg), then took a 150 mile trip on small roads, with a bit of other running around (24mpg). That's the only 3 fills so far. Reckon if we were doing long trips very carefully at 55mph we'd be able to push for 30mpg, but it'd be hard.

[Albannach]

that must be a standard manual surf,,,mine is auto with 4in body lift and 33x12.5x15 kumho muds on,....

right ive took the 2" body lift off and put the orginal wheels back on and now its done 90kms on £15 so its getting better

OK, I'll ask. What the fuk has a body lift got to do with fuel consumption?

[stormforce]

i'll let you know what my mpg is once the 39's are fitted but at the moment i get about 240 running around or about 280 on a decent journey and thats on 33's

[adpsimpson]

OK, I'll ask. What the fuk has a body lift got to do with fuel consumption?

Air resistance?

Drag = 0.5*density of air * V^2 * Area * Coeff.

Assuming coefficient of drag is 0.4, density is 1.2, a 4 inch lift changes frontal area from 2.95m^2 to 3.13m^2. At 67mph (30 m/s), that changes drag from 639N to 675N.

You'd need almost exactly 1kW to overcome that extra drag at that high speed. At half the speed, it's only 133W.

Which isn't very significant.

[arron]

Air resistance?

Drag = 0.5*density of air * V^2 * Area * Coeff.

Assuming coefficient of drag is 0.4, density is 1.2, a 4 inch lift changes frontal area from 2.95m^2 to 3.13m^2. At 67mph (30 m/s), that changes drag from 639N to 675N.

You'd need almost exactly 1kW to overcome that extra drag at that high speed. At half the speed, it's only 133W.

Which isn't very significant.

thanks i was just gonna say that lol,,,,

[kida4ever]

yeh that helped loads ,all i know once returned to std with filters it doubled the mpg ,but removeing the 33s and the lift gave the biggist increase

[theraeteam]

mpg

out of my £25 or 25 liters i got 190 kms till light went on from half a tank full ,roughly... so 190*0.62=118 miles divide by 25= 4.7ltrs *4.54= 21.3mpg , thats all stop start journeys..

[kida4ever]

ive cured it ..............ive sold it

[RodLeach]

ive cured it ..............ive sold it

I wonder how many more members are going to follow your advice for a cure!!

[yoshie]

thanks i was just gonna say that lol,,,,

Air resistance?

Drag = 0.5*density of air * V^2 * Area * Coeff.

Assuming coefficient of drag is 0.4, density is 1.2, a 4 inch lift changes frontal area from 2.95m^2 to 3.13m^2. At 67mph (30 m/s), that changes drag from 639N to 675N.

You'd need almost exactly 1kW to overcome that extra drag at that high speed. At half the speed, it's only 133W.

Which isn't very significant.

BULLSHIT

ive cured it ..............ive sold it

Of course it was rotten on fuel it as a 2.4 you need to drive th your foot on the floor

[blackpoolsparks]

i thought u were away the night?