open gas tank Hyundai Azera 2005 Owner's Manual

1FEATURES OF YOUR HYUNDAI
2
B010A02A-GAT Use Unleaded Gasoline Unleaded gasoline with a Pump Octane Rating of 87 (Research Octane Number91) or higher must be used in Hyundai vehicle. If leaded gasoline is used, it will cause the catalytic converter tobecome ineffective and the emission control system to malfunction. This can also result in increased main-tenance expense. To avoid accidental use of leaded fuel, the large nozzle used with leaded gasoline at servicestations can not be inserted into the fuel tank opening of Hyundai vehicle. NOTE:
o For some countries, Hyundai ve-
hicles are designed to use leaded gasoline. When you are going touse leaded gasoline, ask to Hyundai dealer whether leaded gasoline in your vehicle is avail-able or not.
o Octane Rating of leaded gaso-
line is same with unleaded one.
FUEL RECOMMENDATIONS
B010B01A-AAT What About Gasohol? Gasohol (a mixture of 90% unleaded gasoline and 10% ethanol or grainalcohol) may be used in your Hyundai. However, if your engine develops drive ability problems, the use of 100% un-leaded gasoline is recommended. Fu- els with unspecified quantities of alco- hol, or alcohols other than ethanol,should not be used. B010D01S-AAT Do not Use Methanol Fuels containing methanol (wood al- cohol) should not be used in yourHyundai. This type of fuel can reduce vehicle performance and damage com- ponents of the fuel system.
!
CAUTION:
Your Hyundai's New Vehicle Lim- ited Warranty may not cover dam-age to the fuel system and perfor- mance problems that are caused by the use of methanol or fuels con-taining methanol.
B010A01TG

7EMISSION CONTROL SYSTEMS
2EMISSION CONTROL SYSTEMS
H010A01A-GAT
(If Installed)
Your Hyundai is equipped with an
emission control system to meet all requirements of the Emission prohibi- tion rules of your province.
There are three emission control sys-
tems which are as follows.
(1) Crankcase emission control sys- tem
(2) Evaporative emission control sys- tem
(3) Exhaust emission control system
In order to assure the proper function
of the emission control systems, it is recommended that you have your carinspected and maintained by an au- thorized Hyundai dealer in accordance with the maintenance schedule in thismanual. H010B01A-AAT
1. Crankcase Emission Control
System
The positive crankcase ventilation
(PCV) system is employed to preventair pollution caused by blow-by gasesbeing emitted from the crankcase. This system supplies fresh filtered air to the crankcase through the air in-take hose. Inside the crankcase, the fresh air mixes with blow-by gases, which then pass through the PCVvalve into the induction system.
H010C02Y-GAT
2. Evaporative Emission
Control System
The Evaporative Emission Control
System is designed to prevent fuelvapors from escaping into the atmo-sphere. Canister
While the engine is inoperative, fuel
vapors generated inside the fuel tankare absorbed and stored in the canis-ter. When the engine is running, the fuel vapors absorbed in the canister are drawn into the induction systemthrough the purge control solenoid valve. Purge Control Solenoid Valve
The purge control solenoid valve is
controlled by the ECM (Engine Control Module); when the engine coolant tem- perature is low, and during idling, it closes, so that evaporated fuel is not taken into the surge tank. After enginewarm-up, during ordinary driving, it opens so as to introduce evaporated fuel to the surge tank.