RE: Lubricants

["Randall Young" <randallyoung@earthlink.net>]

Oops.  Should have said "... opens at a few psi pressure differential across
the filter ...".

> -----Original Message-----
>
> There is also a bypass valve that opens at just a few psi so
> that a plugged
> oil filter cannot starve the engine of oil.  AFAIK all
> 'full-flow' filter
> systems have this valve, although most modern systems have it
> built into the
> oil filter itself.