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      07-08-2014, 04:05 AM   #8
stupot
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Drives: X5 40d MSport, 21" wheels
Join Date: Apr 2009
Location: Scotland

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Quote:
Originally Posted by EIGHTLUG
Quote:
Originally Posted by kanate View Post
Wow 35.9 mpg on highway? That's impressive.

My 35d only give me 26-27mpg at most on highway (about 75-78mph speed) and getting about 18-19mpg on city/local driving. Are we talking about the same gallon unit here?
I just got 33.4 MPG over a 50 mile drive today @ 75 MPH. My commute goes from 5,100' to 6,200'. It was near 100 deg today. Tonight, when it's cooler and I'm going the other direction, I should crack 40 MPG, no sweat. I am running the Race Chip tuner @ the E/2 setting. So far, it has been well worth it. Before the tune I was getting 31 MPG and 34 MPG, respectively. All of this was in Eco Pro.
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.
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