Question: What Is The Difference Between 5w 40 And 5w 30?

What is 5w 40 oil used for?

Ideal for starting engines at low temperatures and effective at high engine temperatures, 5w40 engine oils can be used in most conditions..

What does the 5w 30 oil mean?

5w30 motor oil has a winter viscosity grade of five, meaning it’s less viscous (less thick) at very low temperatures compared to, say, 10w30. It has a hot viscosity grade of 30, which means it is less viscous at high temperatures than an oil such as 5w50.

Is 5w 40 synthetic?

Full synthetic 5W-40 motor oil is formulated to flow like 5 Weight oil from a cold start in winter temperatures and like 40 Weight oil once the engine has reached its normal operating temperature.

Will 5w30 hurt a 5w20 engine?

Due to the increased resistance of the thicker 5W-30 oil, your engine will produce slightly lower fuel economy and horsepower output. You also risk engine damage when using 5W-30 instead of 5W-20, as the internal engine components are specifically designed to be used with 5W-20 motor oil.

Can you switch from 5w30 to 5w20?

you could switch. you wont gain fuel economy or hp…the 20 and 30 are just different viscosity ratings. just stick with whatever your engine/user manual says to use. There’s a TSB out that all 2AZ-FE engines should now be using 5w20.

Can I put 5w 40 oil in my car?

To answer your question: No, going to a 5w-40 version of an approved oil for your engine isn’t going to hurt your engine under normal driving conditions. Your 5w-30 oil might break down more quickly if you regularly drive in temps above 35C. There is a second rating on your oil container that is important.

Which oil is thicker 5w30 or 5w40?

Viscosity 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.

What happens if you put the wrong oil in your car?

You might notice a few oil spot in your garage or under your car because using the wrong oil can lead to leaks, or you might become aware of a burning smell while driving. If the oil isn’t working as it should engine parts might not be lubricated well enough and cause friction, which can burn the oil.

Does it matter what 5w30 oil I use?

If your car takes 5w30 oil and you put 5w30 oil in it, it’ll be fine. Totally wrong, these days the spec compliance of an oil is often more important than the viscosity. Don’t put any 5w30 in, put the correct 5w30 in.

What happens if I put 5w20 instead of 5w30?

Probably not. 5w20 oil is fairly light oil and is generally designed to work with newer engines. Motor oil has become part of a manufacturers program to allow engines to get higher fuel mileage. Lighter oils take less HP to pump through an engine than heavier oils.

Is 5w30 better than 10w40?

The main difference between the 5w30 and 10w40 is the viscosity difference at different temperatures. … The one, 5w30, will be able to flow better when the temperatures are low than the 10w40. So at a lower temperature, the 5w30 oil will be the best to protect the engine.

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.

What is the best 5w30 oil?

Top 7 Best 5W30 Synthetic Oil On The Market 2020 ReviewsMobil 1 94001 5W-30 Synthetic Motor Oil.Pennzoil Platinum Full Synthetic Motor Oil 5W-30.Pennzoil Ultra Platinum Full Synthetic Motor Oil 5W-30.Liqui Moly 2039 Longtime High Tech 5W-30 Synthetic Motor Oil.Royal Purple 51530 API-Licensed SAE 5W-30 High-Performance Synthetic Motor Oil.More items…•

Are 5w20 and 5w30 interchangeable?

5w20 and 5w30 are essentially interchangeable. It’s not possible for 5w30 to cause problems in engines that specify 5w20.

Can I use 5w 40 instead of 5w 30?

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.

Which is better 5w 20 or 5w 30?

The thicker 5W-30 should see a slight advantage when operating at higher temperatures, while the thinner 5W-20 oil should provide better engine protection at lower temperature levels and has the added benefit of slightly improving fuel efficiency.

What happens if you put thicker oil in your car?

The higher the number, the thicker the oil. Thicker oil protects engine parts better than thinner oil under tough conditions. For instance, if you’re driving in Arizona in the middle of summer, a 20W-50 motor oil would protect your engine better than a 5w-20 viscosity.

What is the best 5w30 synthetic oil?

10 Best 5W30 Synthetic Oils – ReviewPennzoil 550022689 (Best Budget) … Liqui Moly 2038 (Best 5W30 Full Synthetic Oil) … Royal Purple ROY51530 (High-Performance) … Valvoline VV955-6PK (Large Quantity) … Mobil 1 94001 (For Nascar) … Castrol 1597B1 (For Extended Performance) … Mag 1 61790-pk6 (Friction Modified)More items…•