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Mobil 1 verses castrol

Dear Barbara,

I have a new Buick Lacrosse and I am taking it to the dealer for oil changes and I have 4 free oil changes coming from the dealer. My question is this. They use Mobil Oil and I would like to use Castrol. Would it hurt to wait anther year to start using Castrol or should I do it now. If I use the free changes, they will continue to use Mobil.

I love your new articles. Keep up the good work.


Dear Omar,

Mobil Oil is a great quality oil and it will not hurt a thing to change to Castrol once your free oil services are done by the dealer.

I appreciate the question and obvious concern of this nature and the fact that you take your cars health very seriously.

Thanks for writing in and loving my articles…much appreciated!