Question: Can I Use 10w 40 Instead Of 5w30?

For Example: 10W30 When you start a cold engine up again, motor oil needs to travel to the top of the engine, where it trickles back down.

Since motor oil is vital to lubricating your engine, it needs to move quickly and low viscosity helps it do just that..

What happens if I put 5w20 instead of 0w20?

The 0 oil will flow better at cold temperatures than the 5 oil. Both oils will have the same viscosity at operating temperature. Using one or the other should cause no issues. … Read the owners manual but seriously look at the OEM oil specs and 5w20 is going to be a superior oil than a 0w20.

What is the best oil for older engines?

When you’re choosing the best oil for older cars or high mileage engines, there are several criteria you can look at.Pennzoil High Mileage Conventional Motor Oil. … Castrol GTX Part-Synthetic High Mileage. … Valvoline MaxLife High Mileage Synthetic Blend. … Mobil1 High Mileage Engine Oil. … Amsoil Premium Protection Motor Oil.More items…•

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.

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.

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.

Does oil get thicker as it warms up?

Oil weight, or viscosity, refers to how thick or thin the oil is. … Your engine needs oil that is thin enough for cold starts, and thick enough when the engine is hot. Since oil gets thinner when heated, and thicker when cooled, most of us use what are called multi-grade, or multi-viscosity oils.

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.

Can I put 5 40 oil instead of 5w30?

Both can be used in all temperatures but the 5W30 performs better during cold temperatures and the 5W-40 works better in warm temperatures. Most enthusiasts will agree that 5W30 is the better due to it versatile application and better performance.

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.

Is 5w30 good for high mileage?

Helps extend engine life in vehicles with over 75,000 miles Mobil 1™ High Mileage 5W-30 is designed to help maximize engine performance and extend the engine life of vehicles with over 75,000 miles.

What happens if you put 10w40 instead of 10w30?

You can still use 10w30 engine oil, but it dilutes much faster and damages the internal components of the engine. The 10w40 engine oil will do a much better job by providing sufficient lubrication and protecting the metal components.

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 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.

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.

Which oil is thicker 5w30 or 10w40?

A 10w-40 motor oil is a thicker oil at startup than a 5w-30 motor oil. Therefore, 10w-40 oil clings to the engine’s moving parts more than the lower viscosity 5w-30 oil.

What is 10w 40 oil used for?

Using the correct viscosity oil eases starting, reduces friction, and slows wear. For even more effective start-up protection, use a synthetic 10W-40 instead of a conventional 20W-50. The synthetic 10W-40 flows easily and still maintains enough viscosity to protect piston skirts and bearings when it gets hot.

Is it OK to use 10w40 instead of 5w30?

Your vehicle does not use 5W-30 oil. 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.

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

It won’t damage your engine, just switch back to 5w30 next oil change. The high number indicates thickness when warm, You may burn some oil before the next change but I would say let it go.

Is 0w20 better than 5w30?

It readily means that the 0 oil will flow well and better at a cold temperature more than 5W-30 oils even while maintaining the same viscosity. The 0W-20 is said to be the best oil in the market because it helps to reduce environment hassle on waste oil disposal.

When should I use 10w 40 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.