* 2.2L Ecotec (4-cylinder): This engine typically uses 5W-30 oil. The recommended oil filter will vary slightly depending on the specific application, but common choices include ACDelco PF46, Fram PH8A, or Motorcraft FL-820S. Always check your owner's manual for the manufacturer's specific recommendation.
* 2.4L Ecotec (4-cylinder): This engine also typically uses 5W-30 oil. Again, the recommended oil filter may vary but popular choices include ACDelco PF46, Fram PH8A, or Motorcraft FL-820S. Check your owner's manual for the best fit.
Crucially: Always consult your owner's manual for the *exact* specifications recommended by Chevrolet for your specific 2007 Cobalt. The manual will list the correct oil type and recommended oil filter part numbers. Using the incorrect oil or filter could damage your engine.
