Question: What Happens If I Put 10w40 Instead Of 5w30?

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.

Use only what the owner’s manual specifies.

Using the wrong oil can lead to reduced lubrication and shorter engine life.

If the manual says to use synthetic oil, do so..

Will thicker oil damage my engine?

Not only that, but the engine will waste energy pumping the thicker motor oil, reducing fuel economy. Since thicker oils don’t transfer heat as well as thinner oils, operating temperatures will increase, too, possibly leading to accelerated chemical break down and harmful sludge and deposits.

Should I use thicker oil in a high mileage engine?

A: Yes. This is a practical method to improve oil pressure in an older, high-mileage engine. The slightly thicker oil film from the heavier base weight oil – 10W – can help protect worn engine bearings as well.

Is it OK to mix different brands of engine oil?

THE ANSWER IS NO! Even if two different brands of oil have the same viscosity, you still should not be mixing them together. … Technically, using a grade of oil that’s recommended by your car manufacturer is correct. However, if you combine two different brands of motor oil, you could be at risk of damage.

Does 10w40 hurt 5w30 engine?

10W-40 would be heavier than what your engine is designed for. So it would actually be more protected in very hot weather or operating conditions. If however you start it in -40c weather it will not have the protection it should have and increased wear will happen.

When should I use 10w40 oil?

When to Use 10w30 vs 10w40 Using 10w30 oil in cold weather will help reduce excessive oil temperatures and drag as the engine warms up. Using 10w40 oil in the summer will help the oil stick to internal components in high temperatures, avoiding the wear and tear from metal-to-metal contact between moving parts.

Can I use 10w 40 instead of 5w30?

The recommended oil viscosity for your vehicle, according to Kia documentation, is 10W-40. If you drive the vehicle in exceptionally cold weather, well below 32 degrees, you can use 5W-30 oil but even 10W-40 is still perfectly OK to use if outdoor temperatures are below freezing.

Can I switch from 5w30 to 10w30?

Originally Answered: When should I switch from 5W30 to 10W30? You don’t need to change under normal circumstances. However, If your engine is high mileage or otherwise using oil you could use a 10W-30 or 10W-40 oil which might lessen the oil use.

Is 10w40 good for summer?

The only difference between 10w30 and 10w40 oil is their thickness at engine operating (hot) temperatures. … Using 10w40 oil in the summer will help the oil stick to internal components in high temperatures, avoiding the wear and tear from metal-to-metal contact between moving parts.

Is it OK to put 10w40 in a 5w20?

You can let it cool off enough so you do not burn yourself.. but keep it near hot does the best. And a 10W40 would invalidate your warranty… just so you know. In a 5W20 engine. You could use a 0W20 oil (I use 0W20 oil) in cold weather and it would be Ok by Ford.

What happens if I use 0w20 instead of 5w30?

0w-20 is simply a different viscosity of oil. It won’t be an advantage to your engine if your manufacturer suggests you use 5w-30 and may indeed be a detriment to your engine. … I would suggest using a viscosity for your engine that your manufacturer recommends. You can find that recommendation in your owner’s manual.

Will 5w30 hurt a 10w30 engine?

The 5w30 has more viscosity index improvers vs the 10w30 so technically the 10w30 would have more oil that lubricates the engine. But no it won’t hurt to use 5w30. The 5w30 when cold will still be thicker than the 10w30 when hot anyways so it doesn’t matter.

Should I use 10w30 or 5w30?

The only difference between these two oils is cold flow ability: a 10w30 oil will move slower than a 5w30 oil during cold startups. … If the oil will be in the engine during winter and you live in a place where it gets cold during these months, use 5w30 oil. If it will only be in the engine during the summer, use 10w30.

Which is better 5w30 or 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.

Will 5w30 hurt a 0w20 engine?

0w20 is a fully synthetic motor oil. 0w being the winter weight, the viscosity of the oil at freezing temperatures. … 5w30 can be fully synthetic, however, putting it into your engine which is designed for 0w20 is a bad idea. If it isn’t on the fill cap don’t put it in your engine.

Does brand of oil matter?

No. Switching brands is not harmful to your engine as long as you choose an oil marked with the API donut of the same level, e.g., API SN. … You may give up enhanced performance if you switch from synthetic or high mileage to conventional oil. MYTH: When motor oil becomes dark, that means it’s time to change it.

Is Thicker oil better for older engines?

A: Yes. This is a practical method to improve oil pressure in an older, high-mileage engine. The slightly thicker oil film from the heavier base weight oil — 10W — can help protect worn engine bearings as well.

What happens if I put 10w30 instead of 5w30?

10w30 is thicker then 5w30 because it has a higher viscosity in low temperatures. The engine oil will flow slower than 5w30 during the cold season. Thicker or higher viscosity metal oil has a better seal compared to low viscosity oil. Thicker oil offers better lubrication of motor and engine parts.