Kia Optima: Use of MTBE

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:

Tire rotation
To equalize tread wear, it is recommended that the tires be rotated every 12,000 km (7,500 miles) or sooner if irregular wear develops. During rotation, check the tires for correct balance. ...

ESC connector input/output
Connector Terminal Specification Remark No Description 29 IGNITION1(+) High level of wake up vol ...

Steering wheel audio controls
The steering wheel may incorporate audio control buttons. CAUTION Do not operate audio remote control buttons simultaneously. VOLUME ( +/- ) (1) Press the lever upward ( ) to increase the vo ...