Re: Oil Filters

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

In message <199908152159.PAA20709@ez0.ezlink.com> apowell@ezlink.com writes:
> Some years ago I took a hacksaw to a Fram, Purolator, and three
> or four additional oil filters.
>
> All were basically a single sheet of permeable fiberboard inside a
> can - most with a string tied around them.
>
> I had already seen a taken-apart Amsoil filter.  Filtration element is
> about 1 inch thick, and filters down under 15 microns.  Every filter
> has both a bypass valve and anti-drainback valve.
>
> So that's all I use.  Period.  They cost about $8, give or take.

I wonder if we're really worried about 15 micron stuff, since it's a
couple of orders of magnitude smaller than the smallest bearing
clearance in the engine.  OTOH - if the filter clogs up with this stuff
and the bypass valve sits open for the last 2,000 miles before the
filter gets changed ...

--
 Phil Payne
 UK Audi quattro Owners Club
 Phone: 0385 302803   Fax: 0870 0883933