Hello everyone, I have a 2019 Ghibli with 12,000 and had engine failure. I had the oil changed my a non dealer mechanic who used Mobile One 5w-40. The dealer claims it’s my fault since it’s the incorrect oil, I’m not seeing anywhere online where the oil I used is not recommende. It’s been 6 weeks now and they want me to pay a deductible of $1,000 plus I have already paid 2 lease payments. Anyone can help or help me prove that this oil is ok to use.