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Ultra-Low
Sulfur
Diesel
(ULSD)
contains
97%
less
sulfur
than
low-sulfur
diesel,
and
significantly
higher
amounts
of
dissolved
water
which
causes
cold
weather
freezing
problems
and
warm
weather
microbe
problems.
The
introduction
of
ULSD
has
made
year-round
fuel
maintenance
essential.
ULSD
- What it Means
|
- ULSD
contains up to a 10-fold
increase of water (due
to hydro-treating at
the refinery) which increases
cold weather freezing
problems
|
- There
is increased paraffin
in ULSD, which crystallizes
out of the solution in
cold temperatures and
agglomerates to form
clouds of solids that
plug filters and injectors
when pulled into the
fuel line
|
- Microbe
colonies grow quickly
in ULSD due to an increase
of free water
|
- While
most of the sulfur has
been removed from ULSD,
there is still enough
to combine with water
and form a weak sulfuric
acid that will corrode
fuel tanks.
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- The
process of removing the
sulfur in ULSD and off-road
fuels reduces the ability
of those fuels to lubricate
fuel system components
|
- Lubricating
agents added during the
refining process to meet
ASTM standards may not
meet engine manufacturers'
recommended lubricity
ratings
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- Kerosene,
a winter blend fuel additive
for cold-weather operation,
reduces lubricity further
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- Diesel
engines manufactured
prior to 1/1/07 were
designed to run on #2
diesel (5000ppm sulfur)
or #2 LSD (500ppm sulfur).
While ULSD (15ppm sulfur) can be
used in these engines,
the sulfur content is
part of the lubricity
package the engine was
designed to run on
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- Tier
3 engines (manufactured
after 1/1/07) must use
ULSD, but require engine
oil with low ash content
to avoid clogging the
emission equipment
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- The
minimum cetane rating
for ULSD is 40, while
most engine manufacturers
recommend 42-44
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By
Eliminating Free Water,
K100:
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| Eliminates
cold weather freezing problems,
lowers the temperature at
which paraffin starts to
agglomerate, starves out
existing microbe colonies
and eliminates conditions
for future growth, and prevents
the formation of corrosion-forming
sulfuric acid. |
K100
Also:
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- Increases
ULSD lubricity 20-40%
(at a 1:500 mix ratio)
- organically!
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- Alters
burn chemistry for more
complete combustion leaving no ash
deposits
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- Increases
the cetane rating 1-1/2
to 2 points
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