Is 5W40 better than 15w40?
Is 5W40 better than 15w40? The 5w-40 will have a lower viscosity when the engine is started than the 15w-40; consequently the 5w-40 will start easier and lubricate quicker in the cold than the 15w-40. 5w40 is generally used in petrol and diesel engine while 15w40 is majorly found in diesel engines. What kind of engine oil does a Dodge Ram use? RED LINE Full Synthetic 5W-30 is fully compatible with other conventional and synthetic engine oils. First class engine oil, the highest quality engine oil on the market and the most popular viscosity on the market. Designed for maximum...