I talked to the guy at service today . He said I could bring my own oil and they would only charge me $19.95 for labor and filter . And he said they get Mobile one . But the bulk oil they normally use isn't the right weight for the Hemi and they get it out of part's most of the time. Dealer get what ever they get the best price on . And that might change a few time's as to brand . Don't like getting older . And not up to doing everything.