Your Kia Carnival is engineered to deliver optimal performance and longevity when fueled exclusively with
high-quality unleaded gasoline. To ensure the engine operates within its designed parameters, please use fuel with a
pump octane number of 87 ((R+M)/2) or higher (equivalent to a Research Octane Number of 91 or higher). Utilizing the
correct octane rating is essential for maintaining the health of your Kia Carnival powertrain.
This vehicle is calibrated to achieve maximum power and fuel efficiency while simultaneously minimizing exhaust
emissions and preventing spark plug fouling through the use of recommended UNLEADED FUEL. Please avoid the use of
fuels blended with methanol, as these can compromise system integrity.
To maintain your Kia Carnival in peak condition, never introduce any fuel system cleaning agents into the tank unless
they are explicitly recommended by the manufacturer. If you are uncertain about a specific product, please consult an
authorized Kia dealer for detailed guidance.
WARNING: Proper Refueling Practices
When refueling your Kia Carnival, please observe the following safety protocols:
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Do not attempt to "top off" the tank once the fuel nozzle has automatically shut off. Continuing to force fuel
into the tank after the sensor triggers can lead to dangerous fuel overflow, creating a potential fire hazard
and environmental contamination.
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Always verify that the fuel cap is securely installed after each stop. A properly sealed cap prevents fuel
spillage and vapor leakage, which is a critical safety factor, particularly in the event of an accident.
Gasoline containing alcohol and methanol
Various fuel blends, including gasohol (a mixture of gasoline and ethanol/grain alcohol) and fuels containing
methanol (wood alcohol), are commonly available. While some ethanol blends are permissible, it is vital to understand
what your Kia Carnival can safely ingest.
In accordance with Environmental Protection Agency (EPA) guidelines, ethanol is an acceptable additive for your
vehicle, provided the concentration is managed correctly.
Do not use gasohol containing more than 15% ethanol (E15), and strictly avoid any gasoline or gasohol that contains
methanol. Ethanol is chemically distinct from gasoline; it possesses lower energy density and is hygroscopic (it
attracts water). Consequently, exceeding the 15% threshold may lead to reduced fuel efficiency and lower overall MPG
results for your Kia Carnival.
Methanol is particularly aggressive and may cause significant drivability issues, as well as corrosive damage to the
fuel system, engine control sensors, and emission control components. If you notice any irregularities in
performance, discontinue the use of such fuel immediately.
Please be aware that vehicle damage or performance degradation resulting from the following will not be covered under
the manufacturer's warranty:
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The use of gasoline or gasohol containing any concentration of methanol.
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The use of leaded gasoline or leaded gasohol blends.
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The use of gasohol containing more than 15% ethanol (E15).
Furthermore, "E85" fuel, which consists of 85% ethanol and 15% gasoline, is formulated exclusively for Flexible Fuel
Vehicles. "E85" is entirely incompatible with your Kia Carnival. Using "E85" will lead to poor engine performance,
rough idling, and may cause severe, irreversible damage to the engine and fuel supply infrastructure. Kia strongly
advises against using any fuel with an ethanol content that exceeds 15%.
NOTICE
The New Vehicle Limited Warranty for your Kia Carnival explicitly excludes coverage for damages to the fuel system or
any engine performance problems directly caused by the improper use of "E85" fuel or other unauthorized fuel
additives.
NOTICE
Never use any fuel containing methanol. If you discover that a fuel product contains methanol, stop using it
immediately, as it may inhibit the proper drivability and safe operation of your Kia Carnival.
Other fuels
To preserve the integrity and performance of your vehicle, it is essential to avoid using fuels that contain harmful
metallic additives. Specifically, fuels containing Silicone (Si), MMT (Methylcyclopentadienyl Manganese Tricarbonyl),
Manganese (Mn), or other metallic-based additives can inflict severe damage. These substances may lead to significant
operational issues, including engine misfiring, sluggish acceleration, unexpected stalling, and irreversible damage
to the catalytic converter, such as melting or premature clogging. Furthermore, such contaminants can cause abnormal
corrosion and a drastic reduction in the overall life cycle of critical engine components.
Prolonged use of improper fuel additives may also trigger the Malfunction Indicator Lamp (MIL) on your dashboard,
signaling a need for immediate inspection.
NOTICE
Please be advised that any damage to the fuel system, engine, or emission control equipment resulting from the use of
non-recommended fuels or metallic additives is generally not covered under the terms of your Kia Carnival New Vehicle
Limited Warranty.
Gasoline containing MMT
Certain gasoline formulations available on the market contain manganese-based additives, most notably MMT. Kia
strongly advises against using gasoline that contains MMT. This additive is known to degrade vehicle performance,
diminish fuel efficiency, and cause long-term harm to the sophisticated emission control systems installed in your
car. The presence of MMT can frequently lead to the illumination of the Malfunction Indicator Lamp (MIL) on the
instrument cluster, necessitating diagnostic service.
Do not use methanol
Under no circumstances should you use fuels containing methanol (also known as wood alcohol). Methanol is highly
incompatible with your engine's engineering. Its use can significantly degrade vehicle performance, cause rough
idling, and inflict lasting damage on vital components, including the fuel lines, the engine control module, and the
emission control system. Always verify fuel pump labels to ensure the gasoline is free from methanol.
Fuel Additives
To maintain optimal engine cleanliness and efficiency, we recommend the consistent use of high-quality gasolines
treated with recognized detergent additives, such as "TOP TIER Detergent Gasoline." These high-standard gasolines are
specifically formulated to prevent the formation of carbon deposits within the engine, ensuring that your Kia
Carnival operates smoothly and enhances the overall efficiency of the emission control system.
For additional details regarding the benefits and standards of TOP TIER Detergent Gasoline, please visit the official
website at www.toptiergas.com. For owners who may not have regular access to
TOP TIER fuel and experience issues such as hard starting, rough idling, or general performance drops, approved fuel
system additives may be purchased and used to mitigate these symptoms.
If TOP TIER Detergent Gasoline is unavailable in your area, it is recommended to add one bottle of an authorized fuel
additive to your fuel tank every 8,000 miles (13,000 km) or at every scheduled engine oil change interval. These
specialized additives are available through your authorized Kia dealer, who can also provide professional guidance on
their correct application. Please ensure you do not mix different types of additives, as this may lead to chemical
reactions that could harm your engine.
Operation in foreign countries
If you are planning to drive your Kia Carnival in another country, it is critical to prepare for variations in fuel
standards and local automotive regulations. Please ensure you follow these steps:
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Thoroughly research and observe all local legal requirements regarding vehicle registration, taxation, and
mandatory insurance coverage.
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Verify that fuel matching the octane and purity requirements of your vehicle is readily available in the region
to avoid potential damage from sub-standard fuel sources.
