Can I use 20w50 instead of 15w40?

20W-50 motor oil is for vehicles with gasoline engines. 15W-40 oil is for diesel applications. The difference between the two grades are just the specifications and for all practical purposes, in older vehicles without variable valve timing, the two grades of oil are interchangeable.

What is the difference between 15W 40 and 20W 40?

Originally Answered: What is the difference between 15w 40 and 20w 40? 40 is viscosity at 100°C , that means both have around same viscosity at 100°C but viscosity of 15w40 at 40°C is at 109 and 20w40 at 40°C has 121, 20w40 is thicker than 15w40 and and it is not recommended for cold climates.

Can I use 15w50 instead of 20w50?

Yes you can use 15w50 instead of 20w50 and vice versa.

Will 20W-50 hurt my engine?

If you use 20W-50 oil in an engine that requires 5W-30, for example, you won’t notice any immediate engine damage. But your vehicle will experience engine wear each time you start your engine at a low temperature.

Is 15W-40 good for petrol engines?

Vehicle & Fuel Types Semi Synthetic 15W-40 is suitable for use in passenger cars, 4WDs & light commercial vehicles and is compatible with Petrol/LPG (Dual Fuel), E10, Diesel (without DPF) and most other conventional fuels.

When should I use 20w50?

A SAE 20W-50 motor oil is typically used in older vehicles or in particularly warm climates. Castrol GTX 20W-50 has been specially formulated to help extend the life of your engine by keeping it free from sludge, even when operating in extremely high temperatures.

What’s the difference between 15W-50 and 20W 50 oil?

15W50 oil is thicker than 20W50 oil, which makes it better at resisting heat build-up. However, it is also more viscous, which can make it harder to flow in cold weather. 20W50 oil is thinner and less viscous than 15W50 oil, making it easier to flow in cold weather but less resistant to heat build-up.

What is 20w50 used for?