Check the radiator cap
Silver89,
My 2006 D/A used small amounts of coolant for about 50k miles. Jim came to the rescue when he wrote a DP service article on radiator caps. I checked my radiator cap and the spring was frozen and would not move. I took the blunt end of a screw driver and hit the inside of the cap to free up the spring and it solved the coolant issue. I quickly replaced the cap with a new GM cap and it hasn't used any coolant for the last 75k miles. A new cap is only about $15.00 and would be an easy fix if you are lucky.
Good luck
John
*2006 Chevy, 3500, 4X4, DRW, (LBZ) D/A, CC, LT, 252K Miles, 19.5" Wheels, Mag Hytec Transmission Pan and Differential Cover, SS Grill Guard, Racor 2 micron aux fuel filter, 100 Gallon Aux Fuel Tank, using Edge Evolution, Predator Diablosport, Kennedy ECM tune, Fitch Fuel Catalyst.
*2006 Four Winds, Dutchman, 36', RV, D/A, 5500 Kodiak.
*1993 Harley Davidson, Turbo charged, Springer Softail.
*2007 Pontiac Solstice.
*2005 Jeep, Liberty, CRD (diesel).
*Full-timing in USA, see America first.
BUY AMERICAN or CANADIAN, NOTHING from CHINA .