[DeTomaso] Pure Power Oil Filters High Performance Motor Oil

[Tomas Gunnarsson]

Remember that high oil pressure itself doesn't open the bypass. High pressure drop over the filter element is what makes it open. That pressure drop will be caused by a clogged filter element or high oil flow through the element.

Tomas
  ----- Original Message ----- 
  From: Julian Kift 
  To: guson at home.se ; De Tomaso List 
  Sent: Saturday, December 19, 2009 12:52 AM
  Subject: RE: [DeTomaso] Pure Power Oil Filters High Performance Motor Oil


  The oil most certainly passes through the filter membrane in a full flow filter. In a bypass filter some of it can 'short circuit' if the filter becomes clogged or there is too high a pressure. 
   
  On that a point worthy of note is that I understand installing a high pressure spring in your oil pump can force a bypass filter into early or constant bypass mode if pressure is too high. I do not know at what pressure a std bypass valve is set to relieve at and suspect it may vary between manufacturers.
   
  Julian
   
  > From: guson at home.se
  > To: detomaso at realbig.com
  > Date: Sat, 19 Dec 2009 00:04:10 +0100
  > Subject: Re: [DeTomaso] Pure Power Oil Filters High Performance Motor Oil
  > 
  > Of course the oil passes through paper filters too. What did they write to indicate otherwise?
  > 
  > Tomas
  > 
  > ----- Original Message ----- 
  > From: <dferrato at aol.com>
  > To: <mikeldrew at aol.com>
  > Cc: <kenn_green at yahoo.com>; <detomaso at realbig.com>
  > Sent: Friday, December 18, 2009 11:39 PM
  > Subject: Re: [DeTomaso] Pure Power Oil Filters High Performance Motor Oil
  > 
  > 
  > > The thing in the presentation I saw from Pure Power that struck me the 
  > > most, (if I understood what was said properly) is that I always 
  > > assumed that the oil in a paper type filter was all forcefully passed 
  > > through the paper. According to them, it simply flows against and 
  > > around the element, and the element collects the impurities. In their 
  > > screen system, the oil actually passes through the screen. I will 
  > > clarify this stuff at the MPMC conference third week in January and 
  > > post the info. I will also try to arrange a group buy for us. I am 
  > > definitely going with the Pure Power filter anyway.
  > > On Dec 18, 2009, at 12:06 PM, mikeldrew at aol.com wrote:
  > > 
  > >>
  > >> In a message dated 12/18/09 10 02 30, kenn_green at yahoo.com writes:
  > >>
  > >>
  > >>> Just wondering what is in the oil that actually plugs up (uses up?) 
  > >>> an oil filter? I think that the older oils oxidized and produced 
  > >>> gunk that the filters caught. With modern synthetic oil, I wonder 
  > >>> is the filters ever come close to being "used up"? From many 
  > >>> reports, bearing wear etc. is insignificant with a good synthetic 
  > >>> oil.
  > >>
  > >>
  > >> Probably true. The biggest threat is probably chucks of RTV that 
  > >> can break off when its used overmuch (some people insist on throwing 
  > >> away the front and back seals for the intake manifold and instead 
  > >> using a huge glob of RTV, which is an open invitation to this sort 
  > >> of thing IMHO).
  > >>
  > >> I think it would take a profound amount of debris to 'plug up' an 
  > >> oil filter, but changing them periodically (every other or every 
  > >> third oil change for instance) is probably still a good idea.
  > >>
  > >> Mike
  > > 
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