Spark plugs
Hyundai Sonata / Sonata 2011 Owners Manual / Maintenance / Explanation of scheduled maintenance items / Spark plugs
Make sure to install new spark plugs of the correct heat range.
See also:
Heating and air conditioning
1. Start the engine.
2. Set the mode to the desired position. To improve the effectiveness of heating
and cooling :
- Heating:
- Cooling:
3. Set the temperature control to the desired position. ...
Indicator symbols on the instrument cluster
...
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 ...


