Extreme care should be taken when removing surge tank filler cap if
temperature gauge reads above 165F (74C). Do not add coolant to
cooling system when engine is hot unless engine is running. Add
coolant slowly. Steam or hot coolant under pressure may cause injury.
Type 1, ethylene glycol (green), and Type 2, propylene glycol
(purple), should never be mixed due to their difference in toxic
properties. Failure to comply may result in damage to equipment.
Using antifreeze without mixing it with water can cause high
operating temperatures, blockage of cooling system passages, and
damage to water pump seals.
Type 1 antifreeze is an ethylene glycol based coolant, green in color.
Type 1 can be added to factory-filled pink coolant. When it becomes
necessary to flush factory coolant, Type 1, ethylene glycol, will be
used. When mixing Type 1 antifreeze with water, distilled water is
recommended. Tap water should only be used in emergency
b. Visually check coolant level. Surge tank level should be at COLD FILL LINE
before operation and slightly above COLD FILL LINE after operation. If coolant is
low, perform steps c through h.
c. Place a thick cloth over surge tank filler cap (1). Carefully turn cap (1)
counterclockwise to its first stop to allow cooling system pressure to escape.
d. After cooling system pressure is vented, push down and turn cap (1) counter-
clockwise to remove. Add coolant until surge tank level is at COLD FILL LINE.
f. Stop engine (para. 2-14) and recheck coolant level.
If coolant level
is low, add
coolant until surge tank level is at COLD FILL LINE.
g. Repeat steps e and f until surge tank level remains at COLD FILL LINE.