Kia Optima Hybrid 2017 Owner's Manual page 578

WARNING
Used engine oil may cause skin irri‐
tation or cancer if left in contact
with the skin for prolonged periods
of time. Used engine oil contains
chemicals that have caused cancer in
laboratory animals. Always protect
your skin by washing your hands
thoroughly with soap and warm wa‐
ter as soon as possible after han‐
dling used oil.
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