Wierd oil problem - digest response

[Cmr446 at cs.com (Cmr446@cs.com)]

<<Maybe you are using too thin a oil.  Maybe the oil is draining out of the 
system and it is having to re-purge it after 12 hours.  Other than that, I 
don't know what could be wrong.  Do you have hydraulic lifters??  Sometimes they 
will bleed down and cause a clattering when the lifter itself is bad.  HTH!
 Dave>>

   I won't discount that idea right away, but I have been using the same 
grade for the last four years on this motor. Seems unusual for it to cause this 
problem now, tho'.

<<Last time I had an intermitent oil light issue I was running 10w40 and
someone suggested I used 20w50, and when I switched the oil light stayed one
permanently, so I changed my oil pump. solved the problem...then again it
had over 150K miles on it.

maybe it's time to simply change the oil pump.?

ATS - Patrick Bureau>>

   Did that a few months ago when I installed the motor, but I will do a 
pressure test when I change the filter and oil this weekend. 

Carl
77rocco
03vue