Engine Coolant; Coolant Selection; If The Coolant Level Drops Within A Short Time Of Replenishing - Toyota COROLLA iM 2017 Service Manual

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6-3. Do-it-yourself maintenance

Engine coolant

The coolant level is satisfactory if it is between the "FULL" and "LOW"
lines on the reservoir when the engine is cold.
1
Reservoir cap
2
"FULL" line
3
"LOW" line
If the level is on or below the
"LOW" line, add coolant up to the
"FULL" line. (→P. 318)
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Coolant selection

Only use "Toyota Super Long Life Coolant" or a similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with
long-life hybrid organic acid technology.
For the U.S.A.: "Toyota Super Long Life Coolant" is a mixture of 50% cool-
For Canada: "Toyota Super Long Life Coolant" is a mixture of 55% cool-
For more details about engine coolant, contact your Toyota dealer.
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If the coolant level drops within a short time of replenishing

Visually check the radiator, hoses, engine coolant reservoir caps, drain cock
and water pump.
If you cannot find a leak, have your Toyota dealer test the cap and check for
leaks in the cooling system.
COROLLA iM_U (OM12K64U)
ant and 50% deionized water. (Minimum temperature: -31°F
[-35°C])
ant and 45% deionized water. (Minimum temperature: -44°F
[-42°C])