Is Synthetic Blend Oil Better For High Mileage Cars?

Is Full Synthetic better for high mileage cars?

Your Mileage May Vary Naturally, every situation is different.

However, if a vehicle has been well maintained and is in good running condition, synthetic oil may very well prolong its life.

After all, some mechanics have said to this author that engine oil is more important than fuel..

Do high mileage cars need thicker oil?

High-mileage motor oil doesn’t hurt and it could prevent leaks from starting. … Some mechanics recommend switching to a thicker (higher viscosity) oil — such as 10W-30 full synthetic oil instead of 5W-20 full synthetic — or using oil additives to stop leaks.

Is 20w50 good for high mileage?

The viscosity level of engine oil 20W50 is geared toward racing engines, as opposed to high-mileage engines, that run extremely hot and need heavy load operation. The thickness is not meant for daily, older vehicle use.

How many miles can you go on synthetic blend oil?

5000 milesSynthetic blends hold up longer and won’t break down, even after 5000 miles of driving. Newer cars also have better filtration systems, allowing you to safely drive 5000 miles between oil changes. If your car holds more than the typical 5 Quarts you may also be able to safely run 5,000 mile oil changes.

How often should you change high mileage oil?

Depending on vehicle age, type of oil and driving conditions, oil change intervals will vary. It used to be normal to change the oil every 3,000 miles, but with modern lubricants most engines today have recommended oil change intervals of 5,000 to 7,500 miles.

Can you go back to regular oil after using high mileage oil?

Yes, you can switch to using a synthetic motor oil. Based on how you phrased the question, no oil leaks are present. … High mileage oil has a component or two that can help, but it’s mostly marketing. Switching to a full synthetic it will do better than with a mineral oil.

Are High Mileage oil filters worth it?

HM oils (about 75¢ more per litre) are formulated to handle the extra load and are well worth the money. To get even greater protection, add a high-mileage oil filter, too. … Together, HM oil and an HM filter add less than $7 to the cost of an oil change. It’s a good investment to keep your old wreck running longer.

Is synthetic blend oil any good?

Synthetic oil molecules are more uniform in shape with fewer impurities and better properties than conventional oil molecules. In general, synthetic oil has better extreme high temperature and low temperature performance. Synthetic oils are generally formulated with higher performing additives.

Is it OK to use synthetic blend oil in older cars?

The synthetic oil could leak out and the vehicle could burn or lose oil. … Because synthetic oil does a better job of cleaning out sludge, it could remove deposits that are acting as seals. It’s not accurate to say that you should never use a synthetic oil in an older car.

Is it bad to put high mileage oil in a low mileage?

It can help reduce oil consumption, smoke, and emissions from older engines. High mileage oil also works to minimize leaks and oil seepage. While you could use high mileage oil in a younger car without harming it, the issues that high mileage oil addresses usually don’t appear in vehicles with fewer than 75,000 miles.

Does high mileage oil make a difference?

High-mileage oils have ingredients to take care of older engines, like conditioners, seal swells, antioxidants, detergents and wear or friction additives. … The higher-mileage oils are formulated with seal conditioners that increase flexibility and restore shape, which can help prevent leaks in the long run.

Is it better to use thicker oil in 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.

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.

Is 10w30 better for high mileage?

Both high mileage 5w30 and 10w30 engine oils have the same additives, the only difference is the viscosity at cold startups. Since both oils have the same operating temperature viscosity (30) and additives, they will perform exactly the same. However, 5w30 flows much better than 10w30 during cold starts.

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.

Should I use full synthetic or synthetic blend?

If you can afford it, choose a full synthetic oil. It is the best oil for any engine. Synthetic oil cuts down the hassles or oversights related to more frequent oil changes and deposits. If synthetic oil is too expensive, go with a blend or rotate between a full synthetic and non-full synthetic every other oil change.

What is the best oil to use in a high mileage car?

Mobil 1Mobil 1 High Mileage If you know your vehicle has received regular oil changes at the manufacturer’s Mobil 1™ High Mileage synthetic motor oil is the best choice. Why? This high mileage oil contains a higher base oil viscosity to help reduce leaks and provide better high temperature protection.