How To Do An Oil Change 03-07 Cadillac CTS 2.8L VVT V6

Difficulty: Beginner · About 30 min · Cadillac Cts

Perform an oil change, including a cartridge-style filter housing and resetting the oil life monitor, on a 2003-2007 Cadillac CTS 2.8L.

Steps

1. Raise the car and drain the oil

   Raise the car at the marked jacking point and support it on stands, then remove the 13mm drain plug into a pan, let it fully drain, and hand-tighten the plug before snugging it with the socket.

2. Remove the cartridge filter housing

   Loosen the oil filter housing's cap with a 24mm socket, let the oil trapped inside drain, then pull the cap off, remove the old filter element, and pick the old O-ring out of the housing.

3. Fit a new filter and O-ring

   Seat a new O-ring on the housing cap, drop the new filter element into the housing, then thread the cap back on by hand and torque it to about 18 ft-lb.

4. Fill with fresh oil

   Add the correct oil through the filler neck to the recommended amount, run the engine briefly to circulate it, then recheck the dipstick against the cross-hatched area and top off as needed.

5. Reset the oil life monitor

   Press the dash "Clr" button, scroll up to the Oil Life display, then hold "Clr" until it reads 100% Engine Oil Life.

Check your vehicle’s repair manual for exact specifications and fit.