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Better gas mileage with K04?!

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Old 02-13-2009, 05:04 AM
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Default Better gas mileage with K04?!

Seems odd to think upgrading to a bigger turbo/increased power would give better gas mileage. But since installing the K04, I actually went a week between fill ups whereas with the K03, it would be about 4-5 days needing a fill up.

I certainly wasn't gentle on the throttle ;-) I did my routine commute to work during the week and then some on the weekend. Anyone else notice this after they went K04?
Old 02-13-2009, 05:36 AM
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Possibly you are much more efficient now. My MPG's went up when I did 1+
Old 02-13-2009, 05:38 AM
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That's what I was thinking. Maybe the car isn't working as hard to get it moving lol.
Old 02-13-2009, 06:03 AM
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I've seen only a very slight improvement from Stage 1+.
Old 02-13-2009, 06:11 AM
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Default Mine went down. I use to get 25 mpg and then went to ~22 mpg.

Going to calculate what it is with the K04 now that I just filled up.
Old 02-13-2009, 06:44 AM
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Yup. And iirc, it will get better if you go bigger too
Old 02-13-2009, 06:48 AM
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Default More likely the warm weather

Not sure where you live, but my mileage went way up last week due to the warm spell we had in my neck of the woods.

My mileage definitely did not improve with my K04, but my heavy foot has a lot to do with that, I'm sure!
Old 02-13-2009, 06:50 AM
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Could be. It's back to the 30s now in Boston so we'll see how it does.
Old 02-13-2009, 07:10 AM
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Default my mileage went up 3 mpg earlier this week in Boston...

I have been watching it like a hawk and comparing what the trip computer displays versus what I actually measure at the pump. This is because I recently added a 10% correction factor to the ECU via Vag-Com and I also want to establish a baseline prior to performing my GIAC FXK03 upgrade. I have averaged 25.8 mpg actual over the past 1,500 miles. On the warmer days I was seeing 29-30 mpg on my corrected trip computer. The 10% correction factor gets it within 2% of actual, fwiw.
Old 02-13-2009, 07:14 AM
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Default I need to tweak the correction factor. Every day it says I get 39 mpg on the DIS FTW!

But sadly, I know I'm nowhere near that

When I did my calculations manually, I would get about 300 miles (either gas light came on or just about to) and fill up about 14 gallons.

What channel is it again to do the correction?


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