Look in your owners manual or Park the vehicle on a level surface. Drain the oil and change the filter. Add 4.5 quarts of the correct weight oil. Start the engine and run for 30 seconds. Shut down and wait 30 minutes. Check the oil level and add as necessary to reach the full mark on the dipstick. You now know the capacity. Do not overfill.
The gas tank on the 2008 Cadillac Escalade holds 26.0 gal..
The gas tank on the 2008 Cadillac Escalade-ESV holds 31.0 gal..
The gas tank on the 2008 Cadillac Escalade-EXT holds 31.0 gal..
If its a 3.6 that would hold 6 quarts of oil. Preferably synthetic.
The gas tank on the 2012 Cadillac Escalade holds 26.0 gal..
The gas tank on the 2014 Cadillac Escalade holds 26.0 gal..
The gas tank on the 2005 Cadillac Escalade holds 26 gal..
The gas tank on the 2009 Cadillac Escalade holds 26.0 gal..
The gas tank on the 2006 Cadillac Escalade holds 26.0 gal..
The gas tank on the 2004 Cadillac Escalade holds 26 gal..
The gas tank on the 2013 Cadillac Escalade holds 26.0 gal..
The gas tank on the 2015 Cadillac Escalade holds 26.0 gal..