Gas mileage questions - Land Rovers Only

OkieRover · 01-25-2007, 10:01 AM

On my Range Rover Classic the gas mileage drops slowly. Once it gets to 2mpg lower than normal you can change out the O2 sensors and get the mileage back.

Is it the same with the 4.6 Discovery as well?

My mileage has dropped nearly an entire 1mpg from when I first got her with no changes to the engine or rig at all.

What's the average life expectancy of the O2 sensor on a Disco 2?

Disco Mike · 01-25-2007, 04:27 PM

Usually at 100,000 miles are ready to change out the O2's.
The mileage drop is extremely slow though if it is O2 related.
Mike

WillieBoy · 01-27-2007, 09:42 PM

Don't forget that Land Rovers are engineered utilizing the same strict aerodynamic principles of the household washing machine.

OkieRover · 01-27-2007, 10:06 PM

I think I found it.
Front air pressure is 24 while the back is set to 34
I'm going to bump the front up to 28 or 30psi.

Disco Mike · 01-28-2007, 09:12 AM

Go to 35#'s and 40#s, wont ride any harder but will help on the mileage.
Mike

OkieRover · 01-29-2007, 07:42 AM

Thanks.

johnnybob06 · 01-29-2007, 11:27 AM

what do you recommend the tire pressures should be??

DFW Rusty · 02-01-2007, 06:45 PM

I run the recomended air pressure, I am about let a li'l air out to soften the ride. Ever since I put my roof rack on I went from 15mpg to about 12-13 mpg!

Disco Mike · 02-01-2007, 07:37 PM

Yes, Rovers loose about 2 MPG when they have a roof rack.
Best thing to do is run up the air pressure and keep your engine running well.
Mike

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01-25-2007, 04:27 PM	#2 (permalink)
Disco Mike Moderator Join Date: Aug 2004 Location: Parker, Colorado Posts: 5,771 Gallery: 0	Usually at 100,000 miles are ready to change out the O2's. The mileage drop is extremely slow though if it is O2 related. Mike

01-27-2007, 09:42 PM	#3 (permalink)
WillieBoy Member Join Date: Jan 2007 Posts: 6 Gallery: 0	Don't forget that Land Rovers are engineered utilizing the same strict aerodynamic principles of the household washing machine.

01-28-2007, 09:12 AM	#5 (permalink)
Disco Mike Moderator Join Date: Aug 2004 Location: Parker, Colorado Posts: 5,771 Gallery: 0	Go to 35#'s and 40#s, wont ride any harder but will help on the mileage. Mike

01-29-2007, 11:27 AM	#7 (permalink)
johnnybob06 Senior Member Join Date: Jan 2007 Location: Deeeeppp South Texas Posts: 199 Gallery: 0	what do you recommend the tire pressures should be??

02-01-2007, 06:45 PM	#8 (permalink)
DFW Rusty Offroader Join Date: Jan 2007 Location: Bosque county, Texas Posts: 463 Gallery: 0	I run the recomended air pressure, I am about let a li'l air out to soften the ride. Ever since I put my roof rack on I went from 15mpg to about 12-13 mpg!

02-01-2007, 07:37 PM	#9 (permalink)
Disco Mike Moderator Join Date: Aug 2004 Location: Parker, Colorado Posts: 5,771 Gallery: 0	Yes, Rovers loose about 2 MPG when they have a roof rack. Best thing to do is run up the air pressure and keep your engine running well. Mike

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