One problem related to engine oil leaking has been reported for the 1999 Honda Accord. The most recently reported issues are listed below.
Just found out today from my mechanic during an oil change that oil was leaking into my antifreeze component. As a matter of fact, my oil chamber was near-empty and my antifreeze component was black and full of oil. He also said that he had seen other cases of this in this particular make and model where the engines had to be replaced.