Can you use SAE30 oil vs 5W-30?

Yes, you can use SAE 30 oil instead of 5W-30, but it's important to consider the application. SAE 30 is a single-grade oil that performs well at higher temperatures but lacks the cold-start benefits of 5W-30, which has a lower viscosity at cold temperatures. If you live in a warmer climate and the engine doesn't require multi-viscosity oil, SAE 30 may be suitable. However, for colder environments or modern engines, 5W-30 is generally recommended for better protection and performance.