I'm sorry this ain't exactly an answer but it has started happening to mine over the last couple months & has got progressively worse ! taking it to mechanics tomor so will let you know outcome.
yes!
The MPG for a 2003 Cadillac CTS varies slightly between a manual and automatic transmission car. The automatic averages 16 mpg in the city and 24 mpg on the highway. The manual Cadillac CTS averages 17 mpg in the city and 24 mpg on the highway.
tire rack says 205/60/16
Cinemamotion - 2003 2003-01-16 was released on: USA: 16 January 2003
Golf Central - 1995 1999-01-16 was released on: USA: 16 January 1999
Golf Central - 1995 1999-07-16 was released on: USA: 16 July 1999
Golf Central - 1995 1995-06-16 was released on: USA: 16 June 1995
Golf Central - 1995 1998-01-16 was released on: USA: 16 January 1998
Art Treasures - 2003 2003-10-16 was released on: USA: 16 October 2003 USA: 16 October 2004
Funny Money - 2003 - 2003-06-16 was released on: USA: 16 June 2003
-16
The Golf Fix - 2009 4-16 was released on: USA: 7 May 2012