Hyundai Elantra 2024 Owner's Manual page 450

Maintenance
WARNING
Keep hands, clothing, and tools away
from the rotating fan blades of the
cooling fan.
Always turn off the vehicle unless the
vehicle has to be inspected with the
engine on. The cooling fan may operate
automatically if the negative (-) battery
terminal is not disconnected.
WARNING
Make sure the coolant cap is properly
closed after refilling coolant. Otherwise,
the engine may be overheated while
driving.
1. Check if the coolant cap label is straight
in front.
Engine compartment front view
OOSH089010L
2. Make sure that the tiny protrusions
inside the coolant cap is securely
interlocked.
9-22
OJX1099046
Recommended coolant
• When adding coolant, use only
deionized water, distilled water, or soft
water for your vehicle and never mix
hard water in the coolant filled at the
factory.
• An incorrect coolant mixture may result
in severe malfunction or engine
damage.
• The engine in your vehicle has
aluminum engine parts and must be
protected by an phosphate-based
ethylene glycol coolant to prevent
corrosion and freezing.
• Do not use alcohol or methanol coolant
or mix them with the specified coolant.
• Do not use a solution that contains
more than 60 % antifreeze or less than
35 % antifreeze, which could reduce the
effectiveness of the solution.