>RSRBOB said:
>OK...... where does the stock filter fall into in this analogy?
Well, I can only speculate. Of the two main sources I have reviewed that
were credible, neither did a test/examiniation of the Denso filters that I
recall. (Denso makes the Yamaha filter). Now, I am not a filtration
engineer, just a average guy, so keep my findings in perspective.
I cut open a Denso a while back, and from what I could tell, it had very
good build quality as far as the shell, o-ring, etc. The pressure relief
valve was so-so. The filter material was average. The metal case was a bit
thinner than I expected, compared to other filters. The shell design seemed
to be far different, and after reviewing all of them I came to admire the
shell design.
I compared this to a filter for a Honda Civic (which fits the GTS by the
way) made by Lee, Fram and Amsoil. Both the Lee and Fram struck me in two
different ways: very low quality materials that were assembled quite well,
other than the filter material which was not quite uniform, and seemed far
lighter than both the Denso and Amsoil. The Amsoil filters assembly
quality was better than all the others, and on par with the Denso, but the
pressure relief valve and filter material were thicker and fluffier, and it
seemed to have much more surface area. Also, the Denso and Amsoil had much
better threads on the case, and had a better fit on the filter stem.
Later I compared an Amsoil SDF-13, which actually fits the Ford Aspire and
a few other small cars, and is a direct replacement for the GTS/FZR filter.
It has about 25% more filter area, is slightly wider and longer than the GTS
Denso filter. Right now I use the Amsoil SDF-13 on my GTS for the last 3
changes, and everything seems fine. FYI, the cost of the Denso and Amsoil
is about the same. I never had a chance to examine a Fram bike filter, but
I suspect that they are the same quality as their car filters, i.e. adequate
but nothing more.
I will say that I have no idea why I got into this, other than it seemed
interesting to me at the time. I was intrigued by the guy with the Dodge
website that really went into filter testing before he was shut down by
Allied Signal (the Fram guys) under threat of lawsuit. Cutting open used
filters (they were all used, I did not want to spend money on destroying a
new filter) is both very very messy and somewhat dangerous, as I cut myself
at least twice. Used motor oil in an open cut has a unique sting, which I
liken to being tied down on top of a fire ant nest or juggling jellyfish.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, July 31, 2001 8:00 AM
To: [EMAIL PROTECTED]
Subject: Re: Filters (was oil)
OK...... where does the stock filter fall into in this analogy?
