Engine Oil Selection

~1min read

Recommended API oil classification: CLASS SD OR HIGHER, SE OR HIGHER [FOR EC COUNTRIES]


Recommended oil viscosity (SAE classification)

*1: Limited application depending on operating and temperature conditions.

*2: Not recommended for prolonged high-speed driving.

NOTE

For the best engine performance and component protection under all operating conditions, select engine oil that:

1. Meets the API classification requirements.

2. Has sufficient viscosity for operation until the next oil change within the expected temperature range.

CAUTION

Engine oils that do not meet the API classification requirements and do not have sufficient SAE viscosity are not recommended. The oil container must be marked as complying with the standards listed above.

Test yourself

A quick Hyundai Elantra CN7 quiz: every answer comes with an explanation and a link to the manual page.