MC, 3B, & 7A oil filters

Rick Houck rhouck at
Wed Apr 2 20:35:01 PDT 2008


So you think I could choose the one for the 3B (presumably the most 
demanding application) and use it safely on both of the others? I go through 
8-10 per summer driving season, and the Mahle, Mann, and Bosch all seem to 
be $4 something, which I think is reasonable.

----- Original Message ----- 
From: "Brett Dikeman" <brett at>
To: "Rick Houck" <rhouck at>
Cc: <200q20v at>
Sent: Wednesday, April 02, 2008 5:28 PM
Subject: Re: MC, 3B, & 7A oil filters

>> Maintaining three variations of the 5 cyl motors in my cars (10vt coupe,
>> 20vt coupe, and 90Q20v), I try to keep a supply of filters on hand, but
>> wonder if there is one filter that would be suitable for all three.  One
>> of
>> the Bosch numbers seems to indicate they are interchangeable. Thoughts?
> Audi long ago went to stocking the same filter for most if not all of the
> 5-cylinder cars.  You can do the same.  Save yourself a whole lot of
> scratch and get a Mobil 1 or Amsoil filter, for example.
> The main features you want:
> -large filter area
> -filter held together with metal or plastic, not cardboard (fram, ugh!)
> -anti-drainback valve (possibly visible around the edge holes)
> -bypass valve (visible through the center hole, down at the bottom.)
> -filter body that feels solid (Fram and others used to skimp on the metal-
> some would fail under the higher oil pressures used in European engines.)
> Brett 

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