Black plate (6,1)Cadillac CTS Owner Manual (GMNA-Localizing-MidEast-6882317) - 2014 -CRC - 9/19/1311-6 Service and MaintenanceReplacement may also beneeded if you notice reduced airflow, windows fogging up,or odors. Your dealer can helpyou determine when it is theright time to replace the filter.First Engine Oil Change AfterEvery 80 000 km/50,000 Miles. Automatic transmission fluidchange for vehicles mainlydriven in heavy city traffic in hotweather, in hilly or mountainousterrain, when frequently towing atrailer, or used for taxi, police,or delivery service. SeeAutomatic Transmission Fluid onpage 10-13.. Evaporative control systeminspection. Check all fuel andvapor lines and hoses for properhook-up, routing, and condition.. All-wheel-drive vehicles only:Transfer case fluid change(severe service) for vehiclesmainly driven in heavy city trafficin hot weather, in hilly ormountainous terrain, whenfrequently towing a trailer,or used for taxi, police,or delivery service. During anymaintenance, if a power washeris used to clean mud and dirtfrom the underbody, care shouldbe taken to not directly spray thetransfer case output seals. Highpressure water can overcomethe seals and contaminate thetransfer case fluid.Contaminated fluid will decreasethe life of the transfer case andshould be replaced.First Engine Oil Change AfterEvery 160 000 km/100,000 Miles. Spark plug replacement andspark plug wire inspection. AnEmission Control Service.First Engine Oil Change AfterEvery 240 000 km/150,000 Miles. Engine cooling system drain andrefill (or every five years,whichever occurs first). SeeCooling System on page 10-16.An Emission Control Service.
