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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 0.750.90 mm
(0.030.035 in)
3.6L V6 Engine (LFX) 3 0.951.10 mm
(0.037.043 in)