oil changes

[Loosej@domain.elided]

In a message dated 5/6/99 11:00:08 AM Central Daylight Time, 
owner-alfa-digest@domain.elided writes:

<<  I have a
 car that's been running on Amsoil for 160,000 miles.  (With oil and filter
 changes every 12,000.)  It has no sludge in it at all.  >>

Rich,
  Are you saying with synthetic oils you can go 12,000 miles between changes? 
 Are the filters still filtering after that many miles?  I have been changing 
my Mobile 1 every 5, 000 miles.  How does one decide when to change it?
Thanks,
Joel Lewis
houston
'74 GTV
'89 Milano

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