Ignition - Spark Plug Application & Gap
Bulletin 85-6D-5Date May '85
Ref.. No. 85-116-6D
SUBJECT: SPARK PLUG AND GAP INFORMATION
MODELS AFFECTED: ALL 1981 THRU 1985 BUICKS
Listed below are the spark plugs and gap information for all engine applications used in 1981 thru 1985 Buicks.
A.C. PLUG EIECTRODE
YEAR ENGINE VIN CODE TYPE GAP
1981 Pont. 2.5L 5 R44TSX .060"
Chev. 2.8L X *R43CTS .045"
Buick 3.8L A R45TS8 .080"
Buick 3.8L Turbo 3 R45TS .040"
Buick 4.1L 4 R45TS8 .080"
Pont. 4.3L S R45TSX .060"
Olds. 5.0L Y *R46SX .080"
1982 Pont. 1.8L O *R44XLS .035"
Chev. 1.8L G *R42CTS .035"
Pont. 2.5L R R44TSX .060"
Chev. 2.8L Z *R42CTS .045"
Chev. 2.8L X *R43CTS .045"
Buick 3.0L E R44TS8 .080"
Buick 3.8L A R45TS8 .080"
Buick 3.8L Turbo 3 R45TSX .060"
Buick 4.1L 4 R45TS8 .080"
Olds. 5.0L Y R46SX .080"
1983 Pont. 1.8L O *R44XLS .035"
Chev. 2.0L P R42CTS .035"
Pont. 2.5L R *R44TSX .060"
Chev. 2.8L X R43CTS .045"
Chev. 2.8L Z R42CTS .045"
Buick 3.0L E R44TSX .060"
Buick 3.8L A R45TS8 .080"
Buick 3.8L Turbo 8 R45TSX .060"
Buick 4.1L 4 R45TS8 .080"
Olds. 5.0L Y R46SX .080"
1984 Pont. 1.8L O R44XLS .035"
Pont. 1.8L J R42CXLS .035"
Chev. 2.0L P R42CTS .035"
Pont. 2.5L R *R43TSX .060"
Chev. 2.8L X R43CTS .045"
Chev. 2.8L Z R42CTS .045"
Buick 3.0L E R44TSX .060"
Buick 3.8L (Carb.) A R45TSX .060"
Buick 3.8L (MFI) 3 R44TS8 .080"
Buick 3.8L Turbo 9 R44TS .045"
Buick 4.1L 4 R45TSX .060"
Olds. 5.0L Y R46SX .080"
1985 Pont. 1.8L O R44XLS .035"
Pont. 1.8L J R42CXLS .035"
Chev. 2.0L P R42CTS .035"
Pont. 2.5L R,U R43TSX .060"
Chev. 2.8L (Carb) X R43CTS .045"
Chev. 2.8L (MFI) W R42CTS .045"
Buick 3.0L (MFI) L R44LTS .040"
Buick 3.0L (Carb) E R44TSX .060"
Buick 3.8L (MFI) 3 R44TS8 .080"
Buick 3.8L (Carb.) A R45TSX .060"
Buick 3.8L Turbo 9 R44TS .045"
Olds. 5.0L Y FR3LS6 .060"
* Revised from original specifications.