Compatible for GM / SAAB V6 petrol engines. Application: for CADILLAC CTS (2002-2003 3.2L, Vin N used in cadillac CTS), for CADILLAC CATERA (1997-2001 3.0L Vin Ruse in cadillac catera), for SATURN (2001-2007 3.0L Vin R used in saturn L300 & LW300), for SAAB (1996-2003 3.0L use in SAAB 9.5).