Tom,
Thanks for the interesting anecdote that does support the choice of the
Motorcraft filter, which according to Knize is the Purolator Pure One filter
in a Purolator Premium Plus case. I tend to feel that in normal use, and
assuming you change oil every 3-6k miles, there really isn't any need for a
filter. If, under some unusual circumstance, bad stuff that shouldn't be
there does get in the oil, then the filter is there to try and keep if from
damaging your engine. On the other hand, for a Caterpiller bulldozer working
hard in a very dusty environment, I can believe that good filtering is
important. Maybe some day when I have nothing pressing on my agenda I will
cut open a used filter I have taken off my Tiger and see what I find inside.
My expectation is I won't be anything captured in the filter because I
always change the oil before it gets noticeably dirty. And even the "dirt"
that's there is probably carbon so fine that it wouldn't get trapped in the
filter anyway. I confess that I may be just over-reacting to the Franz
filter advocates who think they can keep the same oil in an engine for
50-100k miles simply because it looks clean. OK, so an oil change even
assuming you use synthetic oil might cost you $30-40. As much as most of use
drive our Tigers, that's probably no more than twice a year. Am I really
going to go against every oil expert's advice just to save maybe $60-80 a
year by not having to change oil? I think not.
Bob
-----Original Message-----
From: owner-tigers@autox.team.net [mailto:owner-tigers@autox.team.net]On
Behalf Of Tom Witt
Sent: Friday, August 24, 2001 11:26 AM
To: tigers@autox.team.net
Subject: RE: Oil Filter Quality
Years ago my brother worked for Purolator randomly testing the capabilities
of their filters as they came off the assembly line. He said they were very
good filters. It was Caterpiller, I think, that stopped using Purolator when
they claimer that they couldn't meet their (Caterpillers) specs. Later they
came back to Purolator because according to my brother Caterpiller found
that regardless of what they wanted, no one was offering them the quality
that Purolator was. Tom Witt B9470101
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