Re: [DML] Specifications on Purflux LS 410C
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Re: [DML] Specifications on Purflux LS 410C

Some more information..  I made some calls this

The Purflux LS 410C has NO anti-drainback valve, and
NO bypass valve!  (Something to consider if you are
lazy about changing your oil).  I was also told that
if someone is willing to buy the Purflux in quantity
(50 or more at a time), they can still be had at a
reasonable price here.  Then I ask myself, is Purflux
really the best choice?  and is it worth the premium

So, we are back to the question as to WHY Purflux? 
Why is this filter the best for our DeLoreans?  Do
filters with the anti-drainback valve somehow impede
oil flow?  If the filter has the bypass, does it stay
open all the time at our operating pressures?

I also spoke to Bosch.  The 72138 filter that was on
the X-Ref link I sent does have a AD valve, and a
bypass of 16psi.  Kind of low.  The 72150 that Hervey
sells is 36psi.  I think that is a better number for
our car, but suspect it may still open prematurely. 
The only way to know for sure would be to monitor the
pressure simultaneously on both sides of the filter.

As of yet, I have not looked to get specifications on
the Mann W 719/5 filters, maybe John can supply us
with them?  FWIW, it looks like the Mann and Mahle
filters are also made by Champion.

Again, based on the various information of oil-filter
studies on the Internet, Wix looks like a good choice
for quality and availability.

They have a filter listed for DeLorean, the 51307, but
the diameter is 3.663 inches which I think will
interfere with the oil sender.  It looks to me like
someone at Wix just took the Volvo filter and said "it
will fit a DeLorean too".

A X-Ref search for the Bosch 72150 comes up with a Wix
51342.  This filter has a diameter of 2.921, which is
smaller than the Purflux (3.385).  It also has a
by-pass of 16PSI, which I think is too low.  Amazing
that a company can claim it is a cross reference when
the Bosch is 36psi!

My local Napa has a full book with all of the oil
filter specifications.  When I have some time, I will
go through it and see what I can find (NAPA filters
are made by WIX).

--- Marc Levy <malevy_nj@xxxxxxxxx> wrote:

> This is, of course, why I asked the question..

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