Kia Optima: Use of MTBE - Fuel requirements - Introduction - Kia Optima TF 2011-2019 Owners ManualKia Optima: Use of MTBE

Kia recommends avoiding fuels containing MTBE (Methyl Tertiary Butyl Ether) over 15.0% vol. (Oxygen Content 2.7% weight) in your vehicle.

Fuel containing MTBE over 15.0% vol. (Oxygen Content 2.7% weight) may reduce vehicle performance and produce vapor lock or hard starting.

Your New Vehicle Limited Warranty may not cover damage to the fuel system and CAUTION

Your New Vehicle Limited Warranty may not cover damage to the fuel system and any performance problems that are caused by the use of fuels containing methanol or fuels containing MTBE (Methyl Tertiary Butyl Ether) over 15.0% vol. (Oxygen Content 2.7% weight.)

Gasoline containing alcohol and methanol
Gasohol, a mixture of gasoline and ethanol (also known as grain alcohol), and gasoline or gasohol containing methanol (also known as wood alcohol) are being marketed along with or instead of leade ...

Do not use methanol
Fuels containing methanol (wood alcohol) should not be used in your vehicle. This type of fuel can reduce vehicle performance and damage components of the fuel system. ...

See also:

Moving Up a Steep Grade From a Standing Start
To move up a steep grade from a standing start, depress the brake pedal, shift the shift lever to D (Drive). Select the appropriate gear depending on load weight and steepness of the grade, and re ...

When Your Vehicle Is Being Towed By Another Vehicle Other Than a Tow Truck (in case of an emergency)
Turn the ignition switch to ACC so the steering wheel isnt locked. Place the transaxle shift lever in N (Neutral). Vehicles equipped with automatic transaxles should not exceed 28 mph and s ...

Lumbar Support (Drivers Seat Only)
You can adjust the lumbar support by moving the lever on the right side of the drivers seatback. Pivoting the lever toward the front of the vehicle increases the lumbar support. Pivoting the le ...

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