2000 ss a4

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Jul 11, 2011 | 08:51 AM

Grudge Night

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2000 ss a4

Hey guys how much will adding 3.73s to my rear affect gas mileage, i need some advice, i have never done it before so i just want to get a feel for what other peoples experiences were with it. It is bone stock. I just want to get a better launch but i wanna figure out how many mpgs im going to loose, i get like 23 highway right now. Thanks guys

Last edited by Grudge Night; Jul 11, 2011 at 08:52 AM. Reason: mispelled feel like feal

Jul 11, 2011 | 10:29 AM

Mike Morris

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What gears are in the car now?

Jul 11, 2011 | 05:29 PM

farmington

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I went from 2.74 to 3.73 gears and probably only lost 1 mpg (A4). A4 or M6.

Jul 11, 2011 | 07:21 PM

FirstYrLS1Z

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From: Euclid,Ohio

being an SS,you probably have 3.23s'.
guessing 3.23s' to 3.73s' will drop your mpg by 1.5,23 to about 21.5.
MPG is always 'right foot' and speed dependent.
with my OEM 3.23s',I got 24.5 on 7 trips to florida,with the 4.56s' for 4 identical trips I'm getting 21.5.