Why do some Toyota Prius models experience excessive oil consumption?

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Why do some Toyota Prius models experience excessive oil consumption?

Older Prius models especially the 2010-2014 models are known for burning oil due to piston ring design flaws. Discussing the causes, warning signs, and possible solutions can help prevent engine damage.

Qalb E Momin asked on 12 Feb 2025 16:01:24 pm

1 Answer

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Car Mechanic Expert - on 12 Feb 2025 16:10:33 pm

Some Prius models, especially from 2010-2014, are known to have issues with excessive oil consumption due to a design flaw in the piston rings. This leads to the engine burning more oil than usual. Symptoms include:

Low oil levels between changes
Blue smoke from the exhaust
Engine knocking o r poor performance

It is recommended to monitor oil levels closely and top up oil regularly. In some cases, Toyota may offer extended warranties o r repairs for affected vehicles.