Mack M359, Руководство пользователя

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MAINTENANCE, LUBRICATION AND SERVICE
FUEL SYSTEM
Fuel Additives
Fuel additives are generally not
recommended or needed for fuels listed
earlier. Cetane improvers can be used as
necessary. Biocides may be needed to
eliminate microorganism growth in
storage tanks. In cold conditions,
treatment for water in the vehicle tanks
may also be necessary.
Consult your fuel supplier about the use
of additives to prevent incompatibility
among additives already in the fuel and
the additives to be used.
Supplemental Fuel Enhancers
There are many aftermarket products
available today which are intended to be
added by the customer. They generally
increase operating cost without
providing benefits. Included are a variety
of independently marketed products
which claim to be:
• Cetane improvers
• Emission control additives
• Detergents
• Combustion improvers
• Smoke suppressants
• Cold weather flow improvers
CAUTION
Supplemental additives are not
recommended because of a high risk of
injection system problems or engine
damage.
NOTE
Repair expenses resulting from
malfunctions in the fuel system or with
engine components when fuel enhancers
have been used are not covered under
warranty.
Some fuel additives may be used
temporarily, but they do not replace
good fuel handling practices. These
products can be used:
• Isopropyl Alcohol Use 1/2 liter per 450
liters (1 pint per 125 gallons) of fuel for
winter freeze-up protection.
• Biocide For treatment of microbe
growth or black slime. Follow
manufacturers instruction for treatment.
Prohibited Additives
The following additives are specifically
NOT allowed and must NOT be mixed in
with the vehicle diesel fuel:
• Gasoline: Adding gasoline to diesel
fuel will reduce the cetane number and
increase combustion temperature. If a
tank contains a diesel fuel/gasoline
mixture, it should be drained and
cleaned as soon as possible.
• Used Lubricating Oil: Mack Trucks
does not recommend the use of any
type of used lubricating oil as an
extender in the diesel fuel. Used
lubrication oil contains solids and acids
from the combustion process that can
severely corrode parts of the injection
system, resulting in reduced power and
higher maintenance cost over time.
Alternative Fuels
Alternative fuels can be of several
different types. There are vegetable
based fuels, aviation fuel and recycled
petroleum based fuels that are used in
combustion engines. These are in
general not compatible with modern
heavy-duty over-the-road diesel
engines.
The use of unauthorized fuels may
compromise the levels of pollutants in
the exhaust to the point where the
engine does not meet the emission
requirements. This would make the
vehicle illegal to drive on public roads.
DO NOT use any kind of alternative fuel
unless specifically authorized by Mack
Trucks.
Fuel Storage
If fuel is stored on site:
• Keep storage tank covered to
prevent water entry.
• DO NOT use a tank made of
galvanized metal or any galvanized
piping for diesel oil storage. Diesel
will react with the zinc, forming
solids that can clog fuel filters and
cause engine damage.
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