Three problems related to engine oil leaking have been reported for the 2010 Toyota Prius. The most recently reported issues are listed below.
Head gasket worn out and leaks oil when under pressure (driving) .
Vehicle after awhile starts to consume oil. It's runs out of oil very quickly. There is no oil leak.
Used 2 qts of oil for every 1500 miles. There are no leaking of oil found under engine.