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• Under certain conditions, you may
notice it takes longer to fill your CNG
fuel tank or CNG fuel tank does not
refill on a hot day. This is caused by
an increase in the pressure inside
the CNG fuel tank. This is normal and
does not indicate a problem with the
CNG fuel tank.
• If it’s difficult to refill your CNG tank
for the above reason, do as follows:
- Use petrol (refuel petrol).
- Avoid refilling the CNG fuel tank at a
very hot midday.
- Do not refill a high propane CNG gas
for home (camping) use.
CNG safety precaution
• Refill CNG only 80% of the tank.
• Do not remove the valve to over
refill. If you refill more than you are
permitted, the fuel tank may explode.
• Turn the engine off while refilling.
• Avoid heat and direct sunlight the fuel
tank may pressure up.
• Avoid underground parking lots or
closed places when you need to park
your vehicle for a very long time.
• If you smell CNG inside your vehicle
open the windows. If you notice
a leak, we recommend that the
system be checked by an authorized
HYUNDAI dealer.
• Make sure your vehicle is parked on a
level surface and nothing flammable is
near while you check your vehicle.
• Do not repair your fuel tank. We
recommend that you contact an
authorized HYUNDAI dealer.
• Do not try to stop the leak by covering
it with your hand. You might suffer
from frostbites.
• If the CNG fuel system has a leak, a
spark from jumper cables could ignite
the CNG. You or someone else could
be badly burned. Do not jump start
your vehicle if you smell CNG or hear a
hissing sound.
• Towing your vehicle with improperly
positioned tow straps, hooks or chains
can damage the CNG fuel system and
cause a leak. You or someone else
could be injured. Do not use the CNG
fuel system components and/or fuel
lines as towing attachment points.
• Do not open the fuel cap while driving.
- The engine may turning off when the
fuel cap is opened while driving.
- When starting the engine after
opening the fuel cap, the engine may
not start.
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