WHAT TYPE OF OIL TO USE IN MY 2008 GMC SAVANA VAN

barbarahezel, Tom is correct. According to page 5-17 of your owners manual it states: Look for three things: • GM6094M Your vehicle’s engine requires oil meeting GM Standard GM6094M. Look for and use only an oil that meets GM Standard GM6094M. • SAE 5W-30 As shown in the viscosity chart, SAE 5W-30 is best for your vehicle. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils such as SAE 20W-50. Erica Tiffany GM Customer Care