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Old 06-24-2020, 01:03 PM   #7 (permalink)
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Originally Posted by Vman455 View Post
It's a known piston ring issue on the 3rd gen Prius. Toyota issued a TSB a few years ago; the fix is replacement of the pistons and rings to the updated MY 2015 version. But it only applies once consumption reaches 1 quart/1,300 miles for vehicles in-warranty.
I didn't realize that, good to know.
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