Maintenance
Hyundai Sonata / Sonata 2011 Owners Manual / Maintenance
See also:
Breaking in your new Hyundai
No formal "break-in" procedure is required with
your new Hyundai. However, you can contribute
to the economical operation and durability of
your Hyundai by observing the following recomme ...
Checking the engine oil
Engine oil is essential to the performance and
service of the engine. It is suggested that you
check the oil level at least once a week in normal
use and more often if you are on a trip or driving
...
Fuel recommendations
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 nozzl ...


