See also:

Coolant
The coolant should be changed at the intervals specified in the maintenance schedule. ...

Gasolines for cleaner air
To help contribute to cleaner air, HYUNDAI recommends that you use gasolines treated with detergent additives, which help prevent deposit formation in the engine. These gasolines will help the eng ...

ADVANCED STANDARD SAFETY TECHNOLOGIES: PART OF HYUNDAI'S ASSURANCE COMMITMENT
Hyundai Sonata is built from the ground up with safety in mind, with a hot stamped ultra-high-strength steel body structure, advanced airbag technology and Electronic Stability Control (ESC), deli ...