Sulfur
The level of sulfur is governed by emissions
legislations. Regional regulation, national
regulations, or local regulations can require a fuel
with a specific sulfur limit. In China fuel quality and
sulfur level can vary significantly across the country,
some cities, and regions can require fuels with sulfur
levels stricter than the available national standard.
The sulfur content of the fuel and the fuel quality
must comply with all existing local regulations for
emissions.
It is recommended that these engine models use at
least fuel that meets China stage 3 or China stage 4
specification.
China stage 3 regulations require use of low sulfur
diesel fuel with less than 0.035 percent (350 PPM)
(mg/kg)) sulfur content.
The lubricity of these fuels must not exceed a wear
scar diameter of 0.46 mm (0.01811 inch) as per “ISO
12156-1”. Refer to “Lubricity” for more information.
Fuels with sulphur content higher than 0.035 percent
(350 PPM) can be only used where allowed by
legalization. High sulfur fuel will have a negative
impact on emissions of particulates. High sulfur fuels
also increase potential for corrosion and wear of
internal component and may significantly shorten the
oil change interval.
Lubricity
Lubricity is the capability of the fuel to prevent pump
wear. The lubricity of the fluid describes the ability of
the fluid to reduce the friction between surfaces that
are under load. This ability reduces the damage that
is caused by friction. Fuel injection systems rely on
the lubricating properties of the fuel. Until fuel sulfur
limits were mandated, the lubricity of the fuel was
believed to be a function of fuel viscosity.
The lubricity has particular significance to the current
low viscosity fuel, low sulfur fuel, and low aromatic
fossil fuel. These fuels are made to meet stringent
exhaust emissions. The lubricity of these fuels must
not exceed a wear scar diameter of 0.46 mm
(0.01811 inch). The fuel lubricity test must be
performed on an HFRR, operated at 60 °C (140 °F).
Refer to “ISO 12156-1”.
NOTICE
The fuels system has been qualified with fuel having
lubricity up to 0.46 mm (0.01811 inch) wear scar di-
ameter as tested by “ISO 12156-1”. Fuel with higher
wear scar diameter than 0.46 mm (0.01811 inch) will
lead to reduced service life and premature failure of
the fuel system.
If fuels do not meet specified lubricity requirement,
appropriate lubricity additive can be used to enhance
the lubricity of the fuel. Contact your fuel supplier in
circumstances when fuel additives are required. Your
fuel supplier can make recommendations for
additives to use and for the correct level of treatment.
Aftermarket Fuel Additives
NOTICE
Perkins does not warrant the quality or performance
of non-Perkins fluids and filters. When auxiliary devi-
ces, accessories, or consumables (filters, additives)
which are made by other manufacturers are used on
Perkins products, the Perkins warranty is not affected
simply because of such use.
However, failures that result from the installation
or use of other manufacturers devices, accesso-
ries, or consumables are NOT Perkins defects.
Therefore, the defects are NOT covered under the
Perkins warranty.
Supplemental diesel fuel additives are not
recommended, because of potential damage to the
fuel system or the engine. Your fuel supplier or the
fuel manufacturer will add the appropriate
supplemental diesel fuel additives.
Perkins recognizes the fact that additives may be
required in some special circumstances. Use these
fuel additives with caution. Contact your fuel supplier
in circumstances when fuel additives are required.
Your fuel supplier can recommend the appropriate
fuel additive and the correct level of treatment.
Note:
For the best results, your fuel supplier should
treat the fuel when additives are required. The
treated fuel must meet the requirements that are
stated in table 17 .
Perkins Diesel Fuel System Cleaner
Perkins T400012 Fuel Cleaner is the only fuel
cleaner that is recommended by Perkins.
Perkins fuel cleaner will remove deposits that can
form in the fuel system with the use of biodiesel and
biodiesel blends. These deposits can create a loss of
power and engine performance.
Once the fuel cleaner has been added to the fuel, the
deposits within the fuel system are removed after 30
hours of engine operation. For maximum results,
continue to use the fuel cleaner for up to 80 hours.
Perkins fuel cleaner can be used on an on-going
basis with no adverse impact on engine or fuel
system durability.
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