See also:

Engine Oil and Filter
The engine oil and filter should be changed at the intervals specified in the maintenance schedule. If the car is being driven in severe conditions, more frequent oil and filter changes are requir ...

Emission Control System
Your Hyundai is equipped with an emission control system to meet all requirements of the U.S. Environmental Protection Agency or California Air Resources Board. There are three emission control sys ...

Efficiency & Drivability
Automakers have been racing to produce small cars that get great gas mileage using conventional engines, and Hyundai has succeeded on that front with the 2011 Elantra, which is powered by a new 14 ...