The recommended oil weight for a 5.3L Chevrolet engine depends on several factors, including the year of the vehicle, the ambient temperature, and whether the engine is naturally aspirated or has forced induction (supercharger or turbocharger). However,
5W-30 is generally the most common and widely recommended oil weight for most 5.3L Chevrolet engines.
To be absolutely certain, always consult your owner's manual. The manual will specify the correct oil weight and viscosity based on your specific vehicle's year and conditions. The information printed inside your owner's manual supersedes any general advice found online.
