mpg loss from changing gears

[00firebird]

about how many mpg would i lose changing from 3.08 to 3.42?

[FunkZ]

Probably 1 tops on average. Maybe 2 if you do a lot of highway driving. Maybe none at all if you can keep your foot out of it. ;)

[00firebird]

out of about 600 miles i've yet to go on the highway... :(

[97rs4life]

not much loss if any at all for me when I did the swap

[ellik]

I didnt get a noticeable if any decrease.

[Fredless]

What they said. GM would not have made it an option on A4's if it significantly hurt HWY mpg. In fact, you might get a tad bit better city mileage because it'll feel a little more healthy from a stop.