 
Hard-working engines come in all shapes
and sizes, from heavy-duty diesels to high performance racing
engines. Though seldom recognized as part of this group, marine
engines include some of the hardest working, hottest running engines
out there.
Marine engines, from those
found in recreational watercraft to larger commercial boats, often
sit idle in storage for weeks or months and when put on the water
are required to run at full throttle for extended periods of time.
These torturous conditions place tremendous stress on engines
and engine oils. Since clean engine oil is critical for ensuring
proper operation and protection, AMSOIL recommends the use of
the Marine Dual Remote Filtration System (BMK-18).
The AMSOIL Dual Remote
and By-Pass filtration systems have been an integral part of the
company's advanced engine protection product line. Building on
the customer-proven success of automotive dual remote and by-pass
filtration technology, the Marine Dual Remote Filtration System
was created to address the specific severe operating environment
of marine engines in both salt and fresh water. For example the
hose fittings are coated with a 3 ml layer of Alumiplate™ and
1 ml of zinc and yellow chromate. Standard hydraulic fittings
typically survive for 96 hours in the grueling ASTM B-117 Salt
Spray Test. When we subjected the Alumiplate™ coated AMSOIL Marine
Bypass System fittings to this critical corrosion resistance test
protocol, they lasted over 1,000 hours! This means the Alumiplate™
coating on the fittings of the AMSOIL Marine Bypass Filtration
System are 10 times more corrosion resistant than standard zinc
and yellow chromate plated fittings. While this exclusive Alumiplate™
coating process is expensive, AMSOIL felt this extra margin of
system protection was absolutely necessary to provide marine application
customers with extraordinary corrosion resistance and protection
- and the peace of mind that goes with knowing that the AMSOIL
Marine Bypass System is engineered for demanding marine applications.
Also, the fasteners and mounting bracket are stainless steel,
and the hose are U.S. Coast Guard approved.
 The effects of marine engines running
predominantly at or near full throttle after extended periods
of non-activity include high operating temperatures and increased
potential for wear on engine components. The AMSOIL Marine Dual
Remote Filtration System offers a clear advantage by providing
better oil filtration, increased oil capacity, longer oil and
filter life, plus the ability to remove water from the lubrication
system. Moisture typically condenses inside engines to combine
with residual combustion gases. The resulting compounds strip
beneficial additives from engine oil and act as corrosive substances
that further degrade the engine oil and promote engine wear. Humid
environments make marine engines especially prone to these conditions.
The BMK-18 greatly curbs the effects of moisture and condensation
by safely retaining water within the filtration system.
Dual remote filtration
is a highly efficient filtering process capable of removing the
vast majority of wear causing particles which are in the 5-20
micron range. It also has the ability to effectively remove particles
down to 1 micron in size. Furthermore, a dual remote filtration
system requires a 1.5 to 2 quart oil volume increase, with the
added oil offering increased cooling capabilities. The additional
hoses, fittings, filters and aluminum mount assemblies also allow
the engine oil to dissipate heat more efficiently as it passes
through the filtration system, extending the service life of both
the engine and the engine oil.
 A large number of marine diesel engines
have by-pass oil filtration systems installed by the engine manufacturer.
Until now, however, this technology has not been available to
smaller pleasure boats and light commercial marine applications.
Depending on the owner's
frequency of use, the improved filtration of the Marine Dual Remote
system, along with the use of AMSOIL's synthetic lubricants, could
completely eliminate oil and filter changes during a typical boating
season.
With marine engines located
in a relatively confined and remote space within the watercraft,
ease of filter access and reduced oil spillage are significant
benefits of the Marine Dual Remote System.
The remote mount of the
BMK-18 is also compatible with the new AMS-Oiler™ Oil Precharger
(AMK-01) for added engine protection during
the frequent dry starting that is typical of marine engines that
sit idle for even short periods of time.
 The BMK-18 is packaged in kit form,
which includes the Dual filter mount, mounting hardware, hoses,
hose fittings, component parts and installation instructions.
In addition, adapter kits of four different sizes enable the BMK-18
to be installed on a wide variety of recreational and light commercial
marine engines.
The AMSOIL Marine Dual
Remote Filtration System represents the cutting edge of filtration
technology-another example of AMSOIL's commitment to providing
quality innovations that can benefit consumers everywhere.
BMK-18
Adapter Kit Reference Guide (G-2051) (PDF - 23K)
BP-239
Marine Dual Remote Filtration System Installation Instructions
(PDF - 347K)
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