Manufactured by Marsh Marine...Tank Cleaning Professionals
“Our experience is your protection since 1966”
Deck Fill Protection Device
Fuel Additives...Continued:
I
f
you
think
fuel
filters
are
all
that
is
necessary
to
provide
clean
fuel,
you
are
sadly
mistaken.
Most
of
the
fuel/water
separators
made
today
will
not
meet
the
new
engine
standards
because
they
were
never
designed
for
today’s
high
tech
diesels
and
the
fuel
flows
they
require.
New
diesels
need
2
to
3
times
more
fuel
flow
through
them
in
order
to
cool
and
lubricate
the
electronic
injectors
and
fuel
components.
Furthermore,
water
which
typically
settled
out
of
older
diesel
fuel
in
a
matter
of
a
few
hours
persists
in
today’s
Ultra
Low
Sulfur
Diesel
for
days
and
often
cannot
be
easily
separated.
This
is
due
to
the
various
lubricity
additives
that
refiners
must
now
add
to
compensate
for
reduced
sulfur.
The
water
droplets
are
sufficiently
stable
to
pass
freely
through
most
typical
fuel-water
separator
media.
Water
is
certain death to injectors!
A
lright,
so
what’s
a
guy
to
do?
You’ve
spent
an
exorbitant
amount
of
money
on
those
beautiful,
new
high
tech
diesels,
and
you
must
protect
this
investment
and
be
able
to
rely
on
them.
The
answer,
besides
the
suggestions
previously
mentioned,
is
to
use
a
proven
fuel
additive.
Key
word
here
is
“proven”.
Fuel
additives
have
often
been
questionable.
Many
are
no
more
than
smoke
and
mirrors
with
fancy
labels...snake
oil
remedies
with
more
promises
than
today’s
politicians.
I
know
of
one
brand
which
is
nothing
but
refined
kerosene
with
blue
dye
in
a
pricey
bottle.
It
won’t
harm
your
engine,
but
it
won’t
help
it
either.
Unfortunately,
the
fuel
additive
industry
is
not
regulated
by
any
government
agency so “extravagant” claims can be made without recourse.
L
egitimate
fuel
additives
do
exist
and
they
do
work.
They
fall
into
two
categories:
Those
that
“emulsify”
contaminates
by
dissolving
them
to
a
point
where
they
can
safely
pass
through
the
fuel
system
and
be
burned
by
the
engine,
and
those
that
“demulsify”
contaminates
by
causing
them
to
settle
out
of
the
fuel.
Both
types
have
their
usefulness
depending
on
conditions.
Both
types
will
enhance
and
protect
your
fuel.
They
add
lubricity
agents
which
compensate
for
reduced
sulfur
to
reduce
metal
wear.
They
usually
have
combustion
catalysts
which
are
specialized
chemicals
to
improve
combustion
efficiency
and
greatly
reduce
carbon
fouling.
This
reduces
engine
smoking
and
provides
more
thorough
combustion
of
injected
fuel
resulting
in
better
fuel
economy
and
cleaner
exhaust
emissions.
Most
have
corrosion
inhibitors
to
protect
the
fuel
tank
from
corrosion.
Without
this
additive,
moisture
and
sulfur
in
the
diesel
fuel
can
combine
to
form
sulfuric
acid.
This
aggressive
acid
will
corrode
aluminum
and
especially
iron
tanks.
One
of
the
most
expensive
repairs
you
can
have
is
to
replace
a
leaking
fuel
tank!
Additionally,
quality
fuel
additives
have
polymerization
retardants
which
help
prevent
the
formation
of
Asphaltene
sludge.
One
thing
to
bear
in
mind,
no
additive,
no
matter
how
great,
can
totally
cure
an
existing
problem.
They
are
meant
to
be
used
as
a
preventative,
so
if
you
have
a
bad
condition
in
your
fuel
or
tank,
clean
it
up
first,
and
then
use
a
fuel
additive
faithfully
to prevent future problems.
F
uel
additive
advantages
are
significant,
but
which
type
should
you
choose,
Emulsifier
or
Demulsifier?
Based
upon
my
experience
with
both
types,
I
would
choose
an
emulsifier
when
treating
fuel
aboard
my
boat.
One
example
of
an
emulsifier
type
additive
is
Algae-X’s
AFC
705
fuel
catalyst.
I
like
this
choice
because
dissolving
contaminants
so
they
can
be
burned
safely
makes
better
sense.
Demulsifiers
on
the
other
hand
will
cause
water
and
contaminants
to
settle
out
to
the
tank
bottom.
There
they
form
a
bulk
mass
and
can
potentially
get
sucked
into
the
fuel
system.
I
won’t
take
this
risk.
Demulsifiers
are
excellent
where
one
needs
to
precipitate
dissolved
water
and/or
contaminants,
for
example
in
storage
drums
where
the
clean
fuel
can
then
be
siphoned
off
the
top,
something
which
cannot
easily
be
done
on
a
boat.