2002 Ford F350 7.3L Diesel Supplement 2nd Printing - Page 28

2002 Ford F350 Manual

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General maintenance information ENGINE COOLANT Replacing coolant A coolant mixture of 50% coolant concentrate and 50% water is recommended to maintain best overall performance. To avoid damaging the engine and radiator, the coolant concentrate should not exceed 60%. When refilling the coolant system either as part of the regular maintenance (48 months, or 80 000 km [50 000 miles], whichever comes first and then every 36 months or 48 000 km [30 000 miles], whichever comes first), or due to service performed, adhere to the following instructions: 1. Drain and flush the cooling system to remove dirt deposits, oil, rust particles. 2. Add 1.89L (4 pints) of supplemental coolant additive FW-15, directly to the cooling system. An additional 237-295 ml (8-10 oz.) of supplemental coolant additive FW-15 should be added at 24 000 km (15 000 mile) intervals to maintain proper concentration. 3. Fill the coolant reservoir with the specified coolant/water mixture until the level stabilizes at the top hose fitting. Replace and tighten cap. Fill the radiator when cold. Level the coolant in the coolant bottle. 4. Reinstall the coolant bottle cap. 5. Start and idle engine until the radiator upper hose is warm (approximately 10-15 minutes). If the hose does not get warm then repeat at a higher engine speed. 6. Immediately shut off engine. Cautiously remove coolant bottle cap and add coolant to Cold Fill mark. Checking coolant level Check coolant level in coolant reservoir bottle at least once a month, only when the engine is cool. Fill to within the "Cold Fill Level" range noted on the reservoir as required with a 50/50 mixture of coolant concentrate and water. A coolant mixture of 50% coolant concentrate and 50% water is recommended to maintain best overall performance. A 60/40 antifreeze to water ratio is acceptable for extremely cold climates, but must be returned to a 50/50 ratio at the end of the winter season. Vehicles with diesel engines typically are used to carry heavy loads and accumulate mileage rapidly. These two factors cause the additives in the 28

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ENGINE COOLANT
Replacing coolant
A coolant mixture of 50% coolant concentrate and 50% water is
recommended to maintain best overall performance. To avoid damaging
the engine and radiator, the coolant concentrate should not exceed 60%.
When refilling the coolant system either as part of the regular
maintenance (48 months, or 80 000 km [50 000 miles], whichever comes
first and then every 36 months or 48 000 km [30 000 miles], whichever
comes first), or due to service performed, adhere to the following
instructions:
1. Drain and flush the cooling system to remove dirt deposits, oil, rust
particles.
2. Add 1.89L (4 pints) of supplemental coolant additive FW-15, directly
to the cooling system. An additional 237–295 ml (8–10 oz.) of
supplemental coolant additive FW-15 should be added at 24 000 km
(15 000 mile) intervals to maintain proper concentration.
3. Fill the coolant reservoir with the specified coolant/water mixture until
the level stabilizes at the top hose fitting. Replace and tighten cap. Fill
the radiator when cold. Level the coolant in the coolant bottle.
4. Reinstall the coolant bottle cap.
5. Start and idle engine until the radiator upper hose is warm
(approximately 10–15 minutes). If the hose does not get warm then
repeat at a higher engine speed.
6. Immediately shut off engine. Cautiously remove coolant bottle cap and
add coolant to Cold Fill mark.
Checking coolant level
Check coolant level in coolant reservoir bottle at least once a month,
only when the engine is cool. Fill to within the “Cold Fill Level” range
noted on the reservoir as required with a 50/50 mixture of coolant
concentrate and water.
A coolant mixture of 50% coolant concentrate and 50% water is
recommended to maintain best overall performance. A 60/40 antifreeze
to water ratio is acceptable for extremely cold climates, but must be
returned to a 50/50 ratio at the end of the winter season.
Vehicles with diesel engines typically are used to carry heavy loads and
accumulate mileage rapidly. These two factors cause the additives in the
General maintenance information
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