Hyundai 20G-7, Руководство по обслуживанию

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COOLANT VISCOSITY MEASUREMENT
Run the engine until the coolant is mixed completely, drain a
little of coolant to determine the coolant viscosity at a safe
operating temperature, measure the coolant viscosity and ad-
just it to the specified value.
REPLACING COOLANT
CAUTION
If the coolant is hot, injury can happen, so when the
engine is hot, never open the radiator cap until the
coolant temperature is dropped. When open the ra-
diator cap, be careful of hot coolant or steam, sur-
round the upper portion of the cap with a rag, slightly
open it counterclockwise to drop the pressure
through the reservoir tank tube, and then slowly turn
the cap to open.
1. After opening the radiator cap, loosen the drain plug and the
engine drain plug and drain the coolant.
2. Remove the reservoir tank and drain the coolant.
3. After draining the coolant completely, close the drain plug,
fill the engine and the radiator full with a radiator cleaner,
and clean the engine and the radiator.
4. After completing the cleaning, drain the cleaner and close
the radiator and engine drain plug.
5. After running the engine for a while, inspect the coolant
level and add a coolant to the specified level.
6. Replenish the reservoir tank with a coolant until the level
reads between FULL and LOW marks.
SCHEDULED MAINTENANCE