What type of engine oil does a Briggs and Stratton engine model 135212 take?

The Briggs and Stratton engine model 135212 typically requires SAE 30 weight oil for temperatures above 32°F (0°C) and 5W-30 for colder conditions. It's important to use high-quality detergent oil that meets the API service classification of SJ or higher. Always refer to the engine's manual for specific recommendations and maintenance guidelines.