My 98 A4 2.8Q uses up to a quart every 5000 miles. I also had the oil leaks from the seals and they were replaced. Since then the oil usage is the same, but the burnt oil smell is gone.
> My wife has a 1999 A4 3.0 that seems to use a lot of oil. She
>> relisiously follows servicing Audi recommendations but has found that
>> between servicing she can be down as much as 2 qts. of oil. The Audi
>> service rep said that is normal and not to worry. She is worried that
>> this is excessive. Is it?
>
> It's not excessive and you should check oil level every 1000-1500 miles or
> so. Never let it get down more than a quart. The V6 of that vintage is
> notorious for its "extenal lubrication system" i.e. it is prone to
> developing oil leaks especially from the cam seals. That could be part of
> your problem.
>
>