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Highway Mileage from Last Week

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Old 08-11-2008, 07:12 AM
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Default Highway Mileage from Last Week
I reset my trip computer a few times....got as high as 22.2 or so for at least an hour.....but for the most part, about 21.5 MPG going about 75 MPH (3,000 RPM).

I think the Mobil 1 0W-30 improved the mileage slightly.
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Old 08-11-2008, 10:57 AM
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Default That extra 50hp equates to a loss of about 8 or 9 mpg
But I'd still take the extra HP :-)
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Old 08-11-2008, 11:39 AM
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It's the gearing not the extra HP
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Old 08-11-2008, 12:36 PM
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Default Re: It's the gearing not the extra HP
What RPM are you turning at 60mph? I am running about 1800 at 60.
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Old 08-11-2008, 12:50 PM
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< ding >
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Old 08-11-2008, 01:56 PM
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Default I know it's 3000 @ 75 MPH
It's about 2400 at 60 as I recall.
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Old 08-11-2008, 02:38 PM
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Default Wow! I had no idea.
Is that just programming in the ZF transmission or is the final drive ratio different?
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Old 08-11-2008, 03:06 PM
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Default We could swap cause I get 25.3 @80mph all day
but then you'd have to spend $10K in upgrades
:-)
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Old 08-11-2008, 03:09 PM
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Final drive, much shorter gears = fast acceleration
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Old 08-11-2008, 03:27 PM
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Default Hence, your personalized plate.
If I remember correctly, that is ... AUDIOS.
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