Do expensive engine oils make a difference?

In other words, findings suggest an expensive oil may not provide any additional benefit to the helping an engine last longer, despite additives. “When you look at the chemical breakdown of each of these oils, there's very, very little difference between them.
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Is more expensive engine oil better?

In the end, the results showed that high-end and low-end oils did not differ significantly. Therefore, despite the fact that additives may extend the life of an engine, expensive oils may not provide any additional benefit.
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Does the brand of engine oil make a difference?

Off-brand oils are full of harmful fillers that will end up doing more harm than good in the long run. That's why it's important to choose a high-quality motor oil for top engine performance.
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Does premium oil make a difference?

The oil is a bit more loose and slick, so there is less build up of sludge, or not as quick. Many drivers have also noticed an improvement in gas mileage when using premium motor oil. Ultimately, the decision of whether premium oil prices are worth it will depend on your vehicle.
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Does it really matter what engine oil I use?

The most important thing is to use oil that's the right thickness, or viscosity, for your car's engine. Oil that's too thick or thin won't provide the necessary protection for your engine, which can result in costly damage.
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All engine oil is the SAME?



Will thicker oil damage my engine?

Using oil that is thicker than recommended may lead to a decrease in fuel economy, a higher load on your engine, and even a shorter life for your engine. Conversely, using thinner, lighter-weight oil than recommended can cause excessive wear and shorter life.
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Are all engine oils the same quality?

Engine oils aren't all the same. You can't assume that the same oil you used for your last car will work for this one. So if you need to top-up, make sure you use the right grade and specification.
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Is premium oil change worthwhile?

Synthetic oil offers “significantly better” protection for your engine, according to a 2017 study by AAA, which found that synthetic oil performed better than conventional oil by an average of 47% on various engine oil tests.
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Which is the best engine oil in the world?

  1. Editor's Pick: Castrol GTX Motor Oil. ...
  2. Valvoline Daily Protection Motor Oil. ...
  3. Quaker State Advanced Durability Motor Oil. ...
  4. AmazonBasics Motor Oil. ...
  5. Havoline Motor Oil. ...
  6. Pennzoil Motor Oil. ...
  7. Lucas Oil Hot Rod & Classic Motor Oil. ...
  8. Formula Shell Motor Oil.
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How can you tell the quality of engine oil?

How to Determine Engine Oil Quality
  1. Engine and Bench Tests. ...
  2. Engine Oil Properties. ...
  3. Viscosity. ...
  4. Viscosity and Wear Prevention. ...
  5. Viscosity Classification. ...
  6. Viscosity at Operating Conditions. ...
  7. High Shear Rate Viscometry. ...
  8. Viscosity and Oil Gelation at Low Temperatures.
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Does it matter which brand synthetic oil I use?

The oil you should use should be the same viscosity as the oil you are recommended by your car manufacturer, so mixing different brands won't harm your engine.
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Is 5w40 better than 5w30?

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 ambient temperatures of 50°C, as opposed to 30°C.
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Are expensive oils worth it?

In other words, findings suggest an expensive oil may not provide any additional benefit to the helping an engine last longer, despite additives. “When you look at the chemical breakdown of each of these oils, there's very, very little difference between them.
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Why is full synthetic oil Better?

Better viscosity. At both low and high temperatures, synthetic oils enjoy better viscosity and stability than conventional oil or synthetic blends. Full synthetic oils are designed to flow quickly in winter temperatures and resist extreme heat, allowing your engine to run smoothly year-round.
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What are the disadvantages of synthetic oil?

A few disadvantages of synthetic oil to be aware of include: Probably the most glaring downside of synthetic oil is the cost. The price of synthetic oil is around two to four times the price of conventional oil. Synthetics may be more prone to additives precipitation during cold storage conditions.
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What brand of synthetic motor oil is best?

List of the Best Synthetic Motor Oils
  • Mobil 1 Extended Performance Synthetic Motor Oil. This is our top pick for numerous reasons. ...
  • Royal Purple High-Performance Synthetic Motor Oil. ...
  • Shell ROTELLA Full Synthetic Diesel Engine Oil. ...
  • Pennzoil Ultra Platinum Full Synthetic Motor Oil. ...
  • Valvoline MaxLife High Mileage Motor Oil.
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What is best oil for high mileage cars?

10 Top-Rated Oils and Additives for High-Mileage Vehicles
  • Valvoline High Mileage with MaxLife Technology Synthetic Blend Motor Oil. ...
  • Pennzoil High Mileage Motor Oil. ...
  • Slick 50 Recharged High Mileage Treatment. ...
  • Gumout Fuel System Cleaner. ...
  • Royal Purple High Mileage Synthetic. ...
  • Techron Fuel Cleaner. ...
  • Mobil Super High Mileage Oil.
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Is Valvoline better than Castrol?

Valvoline is better in some areas, the same as Castrol. For example, it has the best conventional motorcycle oil suitable for cruisers. On the other hand, Castrol has products that guarantee the engine's long life, courtesy of Magnatec technology.
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Will synthetic oil last 2 years?

So, how long does synthetic oil last? On average, synthetic oil lasts about 6 months to 1 year or 7,500-10,000 miles before needing replacement.
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Is full synthetic oil better than synthetic blend?

Synthetic Blend Oil

It performs far better than mineral oil but not as much as fully synthetic engine oil. Some synthetic blend motor oil brands may even guarantee 7,500 miles without a synthetic blend oil change. This is due to their ratio of conventional base oils to synthetic base oil.
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Why can't you go back to regular oil after synthetic?

Myth: Once you switch to synthetic oil, you can never switch back. This is one of the most persistent myths about synthetic oil—and completely untrue. You can switch back and forth at any time. In fact, synthetic blends are simply a mixture of synthetic and conventional oils.
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Will 10w40 hurt a 5w30 engine?

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.
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Do high mileage cars need thicker oil?

High-mileage oils have ingredients to take care of older engines, like conditioners, seal swells, antioxidants, detergents and wear or friction additives. Typically they use a viscosity modifier that is durable and won't lose viscosity very easily. These oils need to stay thicker longer to protect engine parts.
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What happens if I put 10w30 instead of 5w30?

Can I Mix 10w30 and 5w30? Most oils will mix perfectly, provided they have a similar synthetic. Therefore, there is no problem in mixing 10w30 and 5w30 since one will be topping up. Mixing the viscosity of oils will not have any effect on the engine.
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Is 5w40 better for high mileage cars?

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.
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