Black plate (3,1)
Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-6006999) -
2014 - CRC 1st Edition - 4/17/13
Technical Data 12-3
Engine Specifications
Engine VIN Code Spark Plug Gap
3.6L V6 Engine (LF3) 8 0.75–0.90 mm
(0.030–.035 in)
3.6L V6 Engine (LFX) 3 0.95–1.10 mm
(0.037–.043 in)