2015 LR4 SCV6 Gas Mileage

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djkaosone

'11 LR4 HSE LUX 5.0L V8
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I really dislike these mpg questions, because it reminds me of how chitty mine is. I always fill up to the top, reset my trip odometer, and calculate my mpgs with this formula (miles driven / gallons filled). I'm running a FRO roof rack, Terrafirma tire carrier, skid plates, rock sliders, xlifter 1"lift full time, and "33s" 285/70r17s.

With all that said, I'm lucky to get 200 miles on a full tank. 200 miles / 17-18 gallons = 11-12 mpg on a good day. Same calculations while off-roading I get 7-8 mpgs.
 

LandRobert

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Update:

Hello everyone,

So I just did a Throttle Control Module Adaptation Reset through the iCAR Soft tool, took a ride and MPG got a bit better from 12.5 to 14.5 mpg as per the on board computer. It looks like it might be a good idea to do the adaptation reset if you change an O2 sensor or change the fuel type.

The last option that I´m seeing here to increase fuel economy is an ECU remap. Has anyone tried that yet?

Thanks a lot!
 

bdd123

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I just did a few days on the highway. About 230/day for 4 days. When it was 90% highway the trip computer was average 19.2. Worst tank was 17. Stop and go traffic with eco off killed it to about 15.
 

powershift

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I really dislike these mpg questions, because it reminds me of how chitty mine is. I always fill up to the top, reset my trip odometer, and calculate my mpgs with this formula (miles driven / gallons filled). I'm running a FRO roof rack, Terrafirma tire carrier, skid plates, rock sliders, xlifter 1"lift full time, and "33s" 285/70r17s.

With all that said, I'm lucky to get 200 miles on a full tank. 200 miles / 17-18 gallons = 11-12 mpg on a good day. Same calculations while off-roading I get 7-8 mpgs.

Those sound like realistic V8 numbers. I'm seeing numbers like 15 MPG being quoted and I'd be tickled pink to get that. For my LR4 HSE LUX HD V8 I'm expecting what you are seeing, about 10 MPG and more like 5 MPG in 4lo.
 

LandRobert

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I guess I´m within specs here, I took off the roof rack and made a small trip, about 168 miles, 70% highway-30% city, login in info into the fuelly app I got 15.57 mpg, tech specs say 16 mpg combined. So I guess we´re good. Real gas hogs these babies but the ride is smooth as none other. Put the roof rack back on because it looks cooler.
 

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