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      07-08-2014, 10:28 AM   #11
EIGHTLUG
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Drives: 2014 BMW X5d
Join Date: May 2014
Location: Denver, CO

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Quote:
Originally Posted by stupot View Post
If you have a tuning box fitted the dash display will now be telling you fibs! The car thinks it's injecting a certain amount but the box is fooling the pump into injecting more.

You would need to work it out brim to brim to find out what it's really doing, I wound suspect just a little less than it was getting before you fitted the tuning box.
I totally agree that this should be done more scientifically. I traveled 646 miles on my last tank, with a Distance to Empty of 107 miles, when we filled up. That would give me a "projected" range of 753miles or 33.6 MPG (given the tank is 22.4 Gallons, as advertised). That's with mixed driving with 85% of that being 75 MPH on the highway. My numbers are skewed, since I live in a very hilly environment. Yes, mileage drops some going up hill, but quickly shoots to 70-80 MPG, sometimes 99 on the way down. ECO PRO really takes advantage of that.

I do have a 1,000 mile trip to take next weekend. Going from 5,000'+ to 800' then back from 800' to 5,000'. It should be a really good test. More to come on that.
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'14 X5 35d Space Grey/Dakota Black
'12 BMW F 800 GS Trophy
'09 Mercedes Benz E63 AMG
'09 Discovery III HSE- '05 Range Rover HSE
'86 DEFENDER 110 RHD TDI- '72 SERIES III 88 2.25L
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