10W30 is preferred between 0° F. amd 100° F. If below 0° F 5W30 is recommended.
If you have other questions, let me know.
Nov 16, 2009 at 7:52 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.