Corrosion prevention & appearance care
Hyundai Tucson / Hyundai Tucson Owners Manual / Corrosion prevention & appearance care
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Manual Transaxle Oil
Inspect the manual transaxle oil according to the maintenance schedule.
NOTE:
If the oil level is low, check for possible leaks before adding oil. Do not overfill. ...
Use of MTBE
HYUNDAI 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. ...