11.2 Mpg!

[deanz]

I know that the low fuel economy has been discussed here before, but I've now had my LR3 in for service twice for this issue with no resolution. I just hand calculated a little less than 11.2 MPG for mixed driving (40% highway) this weekend (the trip computer showed 11.8 MPG). That seems really out of line to me. I spoke w/ the svc mgr and he said he does not know what else to do (tried the Westchester Transport Mode Fix, etc.). I suggested replacing he ECU, even though he says that no faults are showing up.

Does anyone have any suggestions as what I can ask them to do? It seems that my dealer is starting to believe that we're coming to a dead end on solutions...

 

[grommet]

It's poor, but it's not completely "out of line"... see this (and the rest of the numerous threads): http://www.landroverworld.org/forums/showthread.php?p=20813#post20813

As posted numerous times, unless you get <12 MPG even on "highway only" -- I don't think you have the "Transport" problem

 

[deanz]

Not transport problem....Then What?

Understood...If you do not think it is a transport problem, then what might it be? Or, do you believe that getting 11.8 MPG is within the normal range? From what I can tell 11.2 is very low and I have not done any off-roading. Do you have any idead on what explains this low milage?

 

[grommet]

Well, based my my experience... it seems to be within the range. (See my posting; I did get your mileage 2-3 times.) But you are free to disagree. Anyway, you need to collect more detailed MPG statistics before worrying.

Cold temperatures and higher air density also cause worse mileage... you can see a drop of around 2 MPG. (Being in California, I don't get much excessive chill.) Also, check your tire pressure... keep them at the factory recommendations. (Maybe experiment with slightly more pressure.)

In the end point: We drive the heaviest vehicle of it's size. Period.

 

[deanz]

See your point

Grommet, as always, appreciate your perspective. Agree that I'll need more data points before any real action should be taken. I did think that it would have improved a bit more, given that the service department worked on it and said they were getting 16 MPG (mixed). I've never seen 16 MPG and I guess I'm at a loss of why they seem to get it when they take it to the shop...

 

[lr305]

AS grommet said, MPG depends on many factors. Temperature, tire pressure and altitude and driving speed are most relevent. I would suggest you test the truck on highway when the engine is warm. For my truck, I got 14.8 mixed driving when temperature was teens to 20s. This week the temperature got up to 50's I got about 16.9 on computer, no hand calculation yet, since we'll see snow again this weekend.
Good luck!

 

[TR4Runner]

Wow.... I had no idea that LR3 owners were getting such poor fuel economy. What are the EPA figures?

 

[jackmac]

Wow.... I had no idea that LR3 owners were getting such poor fuel economy. What are the EPA figures?

US:
V8 - 14 city / 18 highway
V6 - 14 city / 19 highway

UK TDV6 is better.

Your actual mileage will vary, and will be worse!

 

[askewed]

I just love saying this so excuse me if you have heard it before but the LR3 couldn't average 19 mpg falling off a cliff, the sticker is deceptive at best.

 

[grommet]

askewed, but I have achieved 21 MPG on my V8... somewhat downhill and the breeze with me.