Oil Filter differences - Audi pn's?

[quk@isham-research.demon.co.uk (Phil Payne)]

In message <3.0.1.32.19980821123933.0070907c@mail.cfm.ohio-state.edu> Dave Conner writes:

> I have been using filters with pn 056 115 561G in these 5 cyl Audis...86
> 4kq, 87 5ks, and 89 100, so I buy them in quantity.  I thought this would
> be the same one to use on the 91 200tq, but now I learn the correct one for
> this car has a different pn...034 115 561A.

> Can anyone tell me the difference between these two filters aside from the
> 561A costing about twice as much?

Anti-drainback valve?

--
 Phil Payne
 Phone: 0385 302803   Fax: 01536 723021
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