Synthetic oily?

Asked by Jul 23, 2019 at 12:06 PM about the 2013 Hyundai Sonata

Question type: Maintenance & Repair

2013 Hyundai Sonata.      Had oil changed they put
synthetic oil in it and over filled about a quart. 2
days later less than 100 miles and the motor is
locked up.   Could it be from changing from regular
oil to the synthetic oil

2 Answers


The oil type would not be the cause but over filling it could be. I think they may owe you an engine.


That Sonata is covered up to 120k miles regardless of how many owners the car has had. There is a known defect in the engine crank case with the crank itself. Go to a Hyundai dealer and get it fixed.

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