[DeTomaso] Remote oil filter setup

boyd casey boyd411 at gmail.com
Mon May 4 20:36:35 EDT 2009


What is your opinion on pre-oiler systems? They don't come standard on any
motor vehicle that I know of  yet I believe they are fairly common on
aircraft? Don't systems where the continued performance of an internal
combustion engine are more critical (like aircraft) also
 use redundant systems? Your point that enhanced filtering of the oil  is
not necessary does not  correlate with it offering no benefit. The system
that I was considering is not a redundant system . The first filter (that
does not restrict oil flow) filters particulate that is 5 microns or larger,
the second bypass filter which is restrictive (due to it"s smaller particle
tolerance) filters particulate over 1 micron. I suppose the question
of whether or not it provides a benefit is predicated on several factors
including the cost of your engine and the environment you are operating in.
In either case I don't think it would cause harm unless you had a failure in
an external line . And while you undoubtedly have a greater chance of losing
oil by adding an external component to the oil system you also theoretically
give your self a little more time to react to a catastrophic loss of oil
pressure if you have a larger oil  reserve ( an external dual filter system
would add a quart and a pre oiler could add up to three additional  quarts)
and a good oil pressure gauge and oil temp gauge could help by alerting you
in time to shut down before irreparable damage were done.Boyd
On Mon, May 4, 2009 at 7:10 PM, Garth Rodericks
<garth_rodericks at yahoo.com>wrote:

> My 2-cents, and it's only worth about that, is that all gasoline powered
> production
> automobiles currently being produced come with only ONE oil filter. Yet,
> they all offer
> anywhere from 50,000-100,000 mile warranties.  Some don't even call for a
> tuneup until
> 100,000 miles.
>
> Anyway, oil and filters should be changed every 3,000-6,000 miles (always
> err on the side
> of conservatism - doesn't hurt anything to change it too frequently). I've
> torn down late
> model OEM engines which showed nary any wear on bearing surfaces after
> 120,000-150,000 miles. This is the result of regular and frequent oil
> changes.
>
> So why would you want two filters? To extend/double the interval between
> oil changes? If
> it's a redundant system (two identical filters inline) the first filter
> will catch most of the
> contaminants and begin to restrict flow to the second filter and
> subsequently the engine. I
> suppose if the first filter has a bypass valve, which most do, then the
> second filter can
> catch whatever bypassed the first filter. But it seems like a lot of
> unnecessary complexity,
> as others have already stated.
>
> I would merely use a filter without a bypass valve and change the oil
> regularly. Or for added peace of mind if you're concerned that the filter is
> getting "full" and losing it's flow/filtering capacity, change your oil
> every 3,000 miles and change the filter at 1,500 mile intervals so it's only
> in service for half the time/mileage between oil changes.
>
> YMMV!
> Garth
>
>
>



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