Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello I will help you with your question,
The 5W-20 will be fine, you want the slightly heavier 5W-30 or 10W-30 for a full change but adding the %W-20 along with the regular fill will be fine.
Please let me know if you have further questions
Always glad to help, please let me know if you have further questions