Oil Storage/Winterization; Cooling System Storage And Winterization - ILMOR 2011 MV8 User Manual

• Run the engine for at least fifteen (15) minutes while in a body of water. This allows
for the circulation of the additives throughout the fuel system.
• If possible during storage, the tank vents should be sealed. If the vent is sealed, the tank
must NOT be completely filled. A ninety-to-ninety-five percent (90-95%) filled tank
allows room for expansion, which will be required at certain times when tempera-
tures increase. The hydrocarbons in gasoline react with naturally occurring oxygen
and create a by-product known as "gum." The substance, as the name infers, plugs up
fuel filters and injectors. Sealing the tank helps reduce gumming by significantly limit-
ing the amount of oxygen available for interaction with the hydrocarbons.
Completely filling the fuel tank prior to storage and then sealing the fuel
tank vent does not allow room for necessary expansion. This can result, in
extreme conditions, in fuel tank rupture. Such release of fuel into the boat
and potentially into the storage area could result in substantial damage to
the boat and contact with any spark (such as a flame-producing pilot light in
a heater) could also result in property damage and serious injury or death.
It is desirable to keep the fuel's temperature below 80 F. (26 C.) The gumming will
increase as temperatures increase.
Note that fuel stabilizers work ONLY in fresh gasoline. Stabilizers will not cure oxy-
genated gasoline. Adding a stabilizer when the boat is being prepared for outings after
storage will NOT clean the gumming that has occurred or remove water from the fuel
tank or otherwise eliminate any problems that have occurred due to failure to properly
prepare the fueling system for storage.
ILMOR suggests using Federal or State of California (TOP TIER) reformulated gaso-
line whenever possible as it stores as well or better than conventional gasoline.
Even quality gasoline that has been properly prepared for storage should never
be stored for a period to exceed one (1) year.
Fuel systems on all boats equipped with ILMOR MV-8 engines MUST be
properly prepared for storage periods exceeding two (2) weeks, as outlined
in this Owner's Manual. Failure to do so will void the warranty.
Contaminants
in used oil can cause engine damage during storage. Perform an
oil change and run engine to operating temperature to allow new oil recirculation.
Cooling system storage/winterization
flushing raw water components with Marine/RV Antifreeze. Engines with closed cool-
ing systems using ILMOR 50/50 propylene glycol/water mix DO NOT REQUIRE
DRAINING. The ILMOR 50/50 coolant will provide freeze protection down to -26 F.
(-32 C.) All components which raw water flows through must be drained. The following
steps are recommended for draining of raw water components:
requires draining and
2011 ILMOR MV8 Owner's Manual • Page 38
Oil Storage/
Winterization
Cooling System
Storage and
Winterization