2023 HYUNDAI TUCSON fuel

IntroductionF2
Your HYUNDAI should not be modified in any way. Such modifications may
adversely affect the performance, safety or durability of your HYUNDAI
and may, in addition, violate conditions of the limited warranties covering
the vehicle. Certain modifications may also be in violation of regulations
established by the U.S. Department of Transportation and other federal or state
agencies.
CAUTION: MODIFICATIONS TO YOUR HYUNDAI
Your vehicle is equipped with electronic fuel injection and other electronic
components. It is possible for an improperly installed/adjusted two-way radio
or cellular telephone to adversely affect electronic systems. For this reason, we
recommend that you carefully follow the radio manufacturer’s instructions or
consult your authorized HYUNDAI dealer for precautionary measures or special
instructions if you choose to install one of these devices.
TWO-WAY RADIO OR CELLULAR TELEPHONE INSTALLATION

Introduction
1-2
FOREWORD
Congratulations, and thank you for choosing HYUNDAI. We are pleased to welcome
you to the growing number of discerning people who drive HYUNDAI. We are very
proud of the advanced engineering and high-quality construction of each HYUNDAI
we build.
Your Owner’s Manual will introduce you to the features and operation of your new
HYUNDAI. To become familiar with your new HYUNDAI, so that you can fully enjoy it,
read this Owner’s Manual carefully before driving your new vehicle.
This manual contains important safety information and instructions intended to
familiarize you with your vehicle’s controls and safety features so you can safely
operate your vehicle.
This manual also contains information on maintenance designed to enhance safe
operation of the vehicle. It is recommended that all service and maintenance on your
car be performed by an authorized HYUNDAI dealer. An authorized HYUNDAI dealer
are prepared to provide high-quality service, maintenance and any other assistance
that may be required.
This Owner’s Manual should be considered a permanent part of your vehicle, and
should be kept in the vehicle so you can refer to it at any time. The manual should stay
with the vehicle if you sell it to provide the next owner with important operating, safety
and maintenance information.
HYUNDAI MOTOR AMERICA
CAUTION
Severe engine and transmission damage may result from the use of poor quality
fuels and lubricants that do not meet HYUNDAI specifications. You must always use
high quality fuels and lubricants that meet the specifications listed on Page 2-14 in
the Vehicle Specifications section of the Owner’s Manual.
Copyright 2021 HYUNDAI Motor America. All rights reserved. No part of this publication
may be reproduced, stored in any retrieval system or transmitted in any form or by any
means without the prior written permission of HYUNDAI Motor America.

01
1-5
Gasoline engine
Unleaded
Your new vehicle is designed to use only unleaded fuel having an octane number
((R+M)/2) of 91 (Research Octane Number 95) or higher. (Do not use methanol blended
fuels)
Your new vehicle is designed to obtain maximum performance with UNLEADED FUEL,
as well as minimize exhaust emissions and spark plug fouling.
NOTICE
To prevent damage to the engine and engine components, never add any fuel
system cleaning agents to the fuel tank other than what has been specified.
Consult an authorized HYUNDAI dealer for additional information.
WARNING
• Do not “top off” after the nozzle automatically shuts off when refueling.
• Always check that the fuel cap is installed securely to prevent fuel spillage in the
event of an accident.
Gasoline containing alcohol and methanol
Gasohol, a mixture of gasoline and ethanol (also known as grain alcohol) are being
marketed along with or instead of leaded or unleaded gasoline. For example, “E15” is a
gasohol comprised of 15% ethanol and 85% gasoline.
Do not use gasohol containing more than 15% ethanol, and do not use gasoline or
gasohol containing any methanol. Either of these fuels may cause drivability problems
and damage to the fuel system, engine control system and emission control system.
Discontinue using gasohol of any kind if drivability problems occur.
“E85” fuel is an alternative fuel comprised of 85 percent ethanol and 15 percent
gasoline, and is manufactured exclusively for use in Flexible Fuel Vehicles. “E85” is
not compatible with your vehicle. Use of “E85” may result in poor engine performance
and damage to your vehicle’s engine and fuel system. HYUNDAI recommends that
customers do not use fuel with an ethanol content exceeding 15 percent.
NOTICE
To prevent damage to your vehicle’s engine and fuel system:
• Never use gasohol which contains methanol.
• Never use gasohol containing more than 15% ethanol.
• Never use leaded fuel or leaded gasohol.
• Never use “E85” fuel.
Your New Vehicle Limited Warranty does not cover damage to the fuel system or any
performance problems caused by the use of “E85” fuel.
FUEL REQUIREMENTS

Introduction
1-6
Using Fuel Additives (except Detergent Fuel Additives)
Using fuel additives such as:
-Silicone fuel additive
-Ferrocene (iron-based) fuel additive
-Other metallic-based fuel additives
May result in cylinder misfire, poor acceleration, engine stalling, damage to the
catalyst, or abnormal corrosion, and may cause damage to the engine resulting in a
reduction in the overall life of the powertrain.
- The Malfunction Indicator Lamp (MIL) may illuminate.
NOTICE
Damage to the fuel system or performance problem caused by the use of these fuels
may not be covered by your New Vehicle Limited Warranty.
Gasoline containing MMT
Some gasoline contains harmful manganese-based fuel additives such as MMT
(Methylcyclopentadienyl Manganese Tricarbonyl).
HYUNDAI does not recommend the use of gasoline containing MMT.
This type of fuel can reduce vehicle performance and affect your emission control
system.
The malfunction indicator lamp on the cluster may come on.
Detergent Fuel Additives
HYUNDAI recommends that you use good quality gasolines treated with detergent
additives such as TOP TIER Detergent Gasoline, which help prevent deposit formation
in the engine. These gasolines will help the engine run cleaner and enhance
performance of the Emission Control System. For more information on TOP TIER
Detergent Gasoline, please go to the website (www. toptiergas.com).
For customers who do not use TOP Tier Detergent Gasoline regularly, and have
problems starting or the engine does not run smoothly, detergent-based fuel additives
that you can purchase separately may be added to the gasoline. If TOP TIER Detergent
Gasoline is not available, one bottle of additive added to the fuel tank according to the
maintenance schedule is recommended (refer to the Maintenance Schedule in chapter
9).
Additives are available from your authorized HYUNDAI dealer along with information
on how to use them. Do not mix other additives.
Operation in foreign countries
If you are going to drive your vehicle in another country, be sure to:
• Observe all regulations regarding registration and insurance.
• Determine that acceptable fuel is available.

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1 -7
VEHICLE MODIFICATIONS
• This vehicle should not be modified. Modification of your vehicle could affect its
performance, safety or durability and may even violate governmental safety and
emissions regulations.
In addition, damage or performance problems resulting from any modification may
not be covered under warranty.
• If you use unauthorized electronic devices, it may cause the vehicle to operate
abnormally, wire damage, battery discharge and fire. For your safety, we
recommend that you do not use unauthorized electronic devices.
VEHICLE BREAK-IN PROCESS
By following a few simple precautions for the first 600 miles (1,000km) you may add to
the performance, economy and life of your vehicle.
• Do not race the engine.
• While driving, keep your engine speed (RPM, or revolutions per minute) between
2,000 RPM and 4,000 RPM.
• Do not maintain a single speed for long periods of time, either fast or slow. Varying
engine speed is needed to properly break-in the engine.
• Avoid hard stops, except in emergencies, to allow the brakes to seat properly.
• Fuel economy and engine performance may vary depending on vehicle break-in
process and be stabilized after 4,000 miles (6,000 km). New engines may consume
more oil during the vehicle break-in period.
• Do not tow a trailer during the first 1,200 miles (2,000km) of operation.
WARNING
CALIFORNIA PROPOSITION 65 WARNING
Items contained in motor vehicles or emitted from them are known to the State of
California to cause cancer and birth defects or reproductive harm. These include:
• Gasoline and its vapors
• Engine exhaust
• Used engine oil
• Interior passenger compartment components and materials
• Component parts which are subject to heat and wear
In addition, battery posts, terminals and related accessories contain lead, lead
compounds and other chemicals known to the State of California to cause cancer
and reproductive harm.
For more information go to https://www.p65warnings.ca.gov/passenger-vehicle

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02
„„Rear view
The actual shape may differ from the illustration.
ONX4010002
EXTERIOR OVERVIEW (II)
1. Door Handle ...........................................5-31
2. Fuel filler door ........................................5 -76
3. Rear combination lamp........................9-56
4. Liftgate ..................................................5-66
5. High mounted stop lamp .....................9-60
6. Rear window wiper blades ..................9-29
7. Antenna ................................................5-136
8. Rear view camera .................................7-112

Vehicle Information, Consumer Information and Reporting Safety Defects
2-14
RECOMMENDED LUBRICANTS AND CAPACITIES
To help achieve proper engine and powertrain performance and durability, use only
lubricants of the proper quality. The correct lubricants also help promote engine
efficiency that results in improved fuel economy.
These lubricants and fluids are recommended for use in your vehicle.
LubricantVolume Classification
Engine oil
*1 (drain and refill)
Recommends
6.13 US qt.
(5.8 ℓ) 0W-20, API SN PLUS/SP or
ILSAC GF-6 *2
Automatic transmission fluid6.87 US qt.(6.5 ℓ)
MICHANG ATF SP-IV, SK ATF SP-IV,
NOCA ATF SP-IV, HYUNDAI genuine
ATF SP-IV or other brands meeting
the above specification approved by
HYUNDAI Motor Co.
Coolant 10.11 US qt.
(9.57 ℓ )
MIXTURE, Antifreeze with water
(Ethylene glycol base coolant for
aluminum radiator)
Brake fluid As required SAE J1704 DOT-4 LV, FMVSS 116 DOT-4,
ISO4925 CLASS-6
Rear differential oil (AWD) 0.56 ~ 0.67 US qt.
(0.53 ~ 0.63 ℓ)HYPOID GEAR OIL API GL-5, SAE
75W/85
(SK HCT-5 GEAR OIL 75W/85 or
EQUIVALENT)
Transfer case oil (AWD) 0.65 ~ 0.71 US qt.
(0.62 ~ 0.68 ℓ )
Fuel57.06 US qt. (54ℓ ) Refer to “Fuel requirements”
in chapter 1.
*1 : Refer to the recommended SAE viscosity numbers.
*2 : Requires grade engine oil. If a lower grade
engine oil (mineral oil including Semi-synthetic) is used, then the engine oil and engine
oil filter must be replaced as indicated severe maintenance condition.

02
2-15
Recommended SAE viscosity number
CAUTION
Always be sure to clean the area around any filler plug, drain plug, or dipstick before
checking or draining any lubricant. This is especially important in dusty or sandy
areas and when the vehicle is used on unpaved roads. Cleaning the plug and dipstick
areas will prevent dirt and grit from entering the engine and other mechanisms that
could be damaged.
Engine oil viscosity (thickness) has an effect on fuel economy and cold weather
operating (engine start and engine oil flowability). Lower viscosity engine oils can
provide better fuel economy and cold weather performance, however, higher viscosity
engine oils are required for satisfactory lubrication in hot weather. Using oils of any
viscosity other than those recommended could result in engine damage.
When choosing an oil, consider the range of temperature your vehicle will be operated
in before the next oil change. Proceed to select the recommended oil viscosity from
the chart.
Temperature Range for SAE Viscosity Numbers
Temperature °C
-30-20-10 010 20 30 4050
(°F) -10020 40 60 80 100120
Engine Oil *
1Smartstream
G2.5 GDI0W-20 0W-20
*1 : Requires grade engine oil. If a lower grade
engine oil (mineral oil including Semi-synthetic) is used, then the engine oil and engine
oil filter must be replaced as indicated for severe maintenance condition.
An engine oil displaying this API Certification Mark conforms to the international Lubricant Specification Advisory Committee
(ILSAC). It is recommended to only use engine oils that uphold
this API Certification Mark.