Question: Can I Use 5w30 Instead Of 5w40?

What does 5w 30 oil mean?

multigrade oil5W-30 means that this is a multigrade oil.

This is indicated by the two numbers separated by a “W” 5W – shows thickness/viscosity of the oil on a start-up – when you start the car (W – stands for Winter, this indicates oil performance under colder engine temperatures when the engine has not been running).

What happens if I put the wrong oil in my car?

The brand of motor oil matters little, but its viscosity grade (10W-30, for example) is important. … Using the wrong oil can lead to reduced lubrication and shorter engine life. If the manual says to use synthetic oil, do so.

Is 5w30 the same as 5w40?

Viscosity This term is defined as how well the liquid will flow through the engine. The working viscosity of 5w30 is basically from 9.3 to 12.5mm2/s whereas the operating viscosity of 5w40 is 12.5 to 16.3mm2/s. That means 5w40 has larger viscosity than 5w30. So, 5w30 is better than 5w40.

Can I use 5w30 oil in my car?

The 5W30 has a viscosity grade of 5 at low temperatures and a grade of 30 at higher temperatures. The 5w30 car engine oil is typically used in light-duty petrol and diesel engines. You will find that most automobile manufacturers recommend it for cars and SUVs.

Can I use 15w40 instead of 5w30?

5w30 flows better than 15w40. 5w30 provides best cold start properties. Using 15w40 instead of 5w30 will increase your fuel consumption because of more load on your engine’s crank. No it won’t blow off,you will just wear your engine out quicker because the oil won’t flow to the moving parts as quickly !

Is 5w30 or 5w40 better for winter?

5w30 can be used by different type of vehicles and in different range of temperatures, but is ideal for colder temperatures. 5w40 is often used in higher mileage engine sand performs better in warmer temperatures.

Is 5w40 better for high mileage cars?

According to Mobil Oil’s website, a heavy grade 5W-40 oil is best for use in vehicles that hold a diesel motor with high mileage. The use of heavy grade 5W-40 oils help to extend the life of diesel engines by protecting the engine against leaks, Z.

Can I add new oil to old oil in my car?

What happens if you put new oil on top of old oil? When you mix new and old oil, the new oil becomes “watered down” with the lack of interfacial tension and strains to do its’ job. Be sure to have your oil changed as soon as possible.

Can I use 5w30 synthetic instead of 5w40?

If you are racking your brain to choose between 5w30 and 5w40, we recommend you go with 5w30. However, if it is too expensive or not available for use, you can always go with the 5w40, which is just as good and will not cause any damage to the engine parts.

Will 5w40 hurt a 5w30 engine?

In practice, this means that each oil is just as viscous at lower temperatures and will remain viscous at -30°C, however 5w40 oil outperforms 5w30 oils at higher temperatures, being effective up to temperatures of 50°C, as opposed to 30°C.

What does 5w40 mean in oil?

5w40 engine oil has a winter viscosity grade of five, meaning it’s less viscous at very low temperatures, compared to, say, 10w40. It has a hot viscosity grade of 40, which means it is just as viscous as 10w40 at high temperatures but less viscous than oils such as 15w50.

Is 5w30 good for high mileage?

Furthermore, high-mileage 5W-30 motor oil is specially formulated for late model vehicles or newer vehicles with over 75,000 miles/120,000 kilometers. High mileage motor oil, with its unique additives and formulation, helps to reduce oil burn-off, and helps prevent oil leaks that may occur in older engines.