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Old 01-16-2013, 01:41 PM   #37
Joined: Jul 2007
Location: Los Angeles, CA
Oddometer: 2,481
Originally Posted by DepthFinder View Post
: There are also semi-returnless designs (such as BMW auto) where the fixed pressure regulator is contained in the external fuel filter with output to the engine and return from filter to tank.
that explains the $100 fuel filter I bought.
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