* For normal temperatures: 5W-30 is usually recommended.
* For extremely hot climates: 10W-30 might be suitable. However, 5W-30 is often preferred even in hot climates for its better cold-weather performance.
* Never use: anything outside the recommendations in your owner's manual. Using the wrong viscosity can damage your engine.
Always check your owner's manual for the definitive answer. The manual will specify the recommended oil viscosity based on your specific vehicle and operating conditions.