Can you use 5w30 oil in a 13hp Briggs and stratton engine?

Yes, you can use 5W-30 oil in a 13hp Briggs and Stratton engine, as it is within the recommended viscosity range for many outdoor power equipment engines. However, it's always best to consult the owner's manual for specific oil recommendations and to ensure optimal performance. Using a multi-viscosity oil like 5W-30 can provide better lubrication in varying temperatures. Just make sure the oil meets the necessary API service classification.