Can i use 0w-30 full synthetic oil

you will probably get several opinions on your question,although this is what your owners manual states (starting on page 6-10 through page 6-14)>>> SAE 5W-30 is best for your vehicle. However, you can use SAE 1OW-30 if it's going to be 0°F (-18OC) or above.These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils, such as SAE 2OW-50 per your owners manual. free owners manual link below.... https://justgivemethedamnmanual.com/chevrolet/1996-chevrolet-cavalier-owners-manual/