Genuine Briggs & Stratton 5W30 engine oil specially formulated and approved for winter use in all air-cooled 4-cycle engines. This OEM part ensures proper fit and performance to maintain the life of your Briggs & Stratton engine. Many parts look similar, so it’s crucial to ensure you’re choosing the right replacement for your original equipment or engine model. Not sure? Use our Parts Lookup Tool to view part diagrams and find the correct replacement.