Description and OperationHyundai Tucson (NX4) 2022-2026 Owner's Manual: Fuel Requirements
Gasoline Engine
Unleaded
Your new vehicle is designed to perform
optimally with unleaded fuel having
an octane number ((R+M)/2) of 87
(Research Octane Number 91) or higher.
Your new vehicle is designed to obtain
maximum performance with UNLEADED
FUEL, as well as minimize exhaust
emiss ...
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: System Maintenance
Air Conditioning Performance and
Maintenance at Your HYUNDAI
Dealer
If the amount of refrigerant is too low
or too high, the performance of the air
conditioning is reduced. Have the system
be inspected by an authorized HYUNDAI
dealer.
NOTICE
The refrigerant system should only
be ...