Valve clearance
Hyundai Sonata / Sonata 2011 Owners Manual / Maintenance / Explanation of scheduled maintenance items / Valve clearance
Inspect excessive valve noise and/or engine vibration and adjust if necessary. An authorized HYUNDAI dealer should perform the operation.
See also:
Winter driving
The more severe weather conditions of winter
result in greater wear and other problems. To
minimize the problems of winter driving, you
should follow these suggestions:
Snowy or Icy Conditions
To ...
High Mounted Stop Light
If the light bulb is not operating, have the vehicle checked by an authorized
Hyundai dealer. ...
Use Unleaded Gasoline
Unleaded gasoline with a Pump Octane Rating of 87 (Research Octane Number 91)
or higher must be used in your Hyundai.
WARNING:
o Do not "top off" after the nozzle automatically shuts o ...


