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Message: <blockquote data-quote="Jesse Sanchez" data-source="post: 4066">Hi Valerie,Just wondering if your Prius stopped consuming oil after they used a heavier weight oil? Most mechanics don't recommend this since it could damage the upper parts of the hybrid engine. I started spotting this same oil consumption issue on my 2010 approximately at the same 100k+ mileage. Did a consumption oil test and dealer agreed it was an issue, however they claimed the recall didn't apply to my car although it does have the 2ZR-FXE engine. So they did a "performance" oil change and stated I needed 3 in a row. Did all 3 oil changes and still consuming oil. Now the car is rattling when I accelerate which makes me think the piston seals and rings are going bad. I may have a failed engine soon. Curious how your car is now performing or if the dealer is considering replacing the pistons as stated in the warranty extension?</blockquote>