22,500 miles (36,000 km) or 18 months

❑ Inspect air cleaner filter ❑ Inspect vacuum hose ❑ Replace engine oil and filter (22,500 miles (36,000 km) or 36 months)

    See also:

    1. Crankcase emission control system
    The positive crankcase ventilation system is employed to prevent air pollution caused by blow-by gases being emitted from the crankcase. This system supplies fresh filtered air to the crankcase th ...

    Filter replacement
    It must be replaced when necessary, and should not be cleaned and reused. You can clean the filter when inspecting the air cleaner element. Clean the filter by using compressed air. 1. Loosen ...

    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 ...