Hello want to say thanks to everyone on these forums and the great wisdom

Just bought my 2005 Roadster a month ago with 30,000 miles
Had the usual problem people here have had they replaced the
filter and had the o-rings on wrong , oil evrywhere was a slow weep
at the filter which turned to a SEEP! thank -god the belt didn't come
off like some people

The 5 star dealer changed my oil today and they said they no longer use
mobil in crossfires, they said they changed to Quaker State 5w40
synthetic oil. Does anyone know If I just was fed a bunch of CRAP!
or taken but the oil SEEP has stopped!
btw the oil change was $129.85 $9.45 a quart for 8 qts.
thank-you
Bill