Getting the codes read would be a good start. The 95 may have obdII although it wasn't required until 96. I doubt a relationship between the oil change place and the symptoms you have. But never say never.
The oil weight will have no bearing on the problem. Bad gas is pretty rare. IF you put in the wrong octane, that may affect it, but still low probability.
Friday, October 26th, 2007 AT 7:44 AM