Lubrication of Two Stroke Marine Engine Engine Oil Guide A. 0W 20 Best for: 1. New modern petrol vehicles 2. Hybrid cars 3. Vehicles designed for fuel efficiency Why use it: Very thin oil quick lubrication during cold start Engine oil is the lifeblood of your engine. Beyond lubrication, it reduces friction, manages heat, seals internal components, and plays a key role in extending engine life. Choosing the correct oil viscosity Types of Motor Oils: Which is Best for Your Diesel Engine? Knowledge & Resources Lubrication Best Practices & Insights The Oil Lubrication System: What It Is, How It Works, and More In The Garage with CarParts.com