A good high-mileage oil for 10W-30 motor oil is a good one. Older engines use more oil, but it gives them a better fuel economy. Older engines with more than 75,000 miles on them require a thicker oil that will lubricate their critical engine parts and prevent oil leaks, sludge, and deposits from forming.
When should I switch to thicker oil?
If, for instance, clearances between engine components have increased, gotten sloppy, a thicker oil can help to fill the void. Within reason, thicker oil maintains a better lubricant film between moving parts. Some have even used thicker oil in a leaky engine to prevent oil from seeping out.
Should I use thicker engine oil?
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. Follow the manufacturer's instructions.
Is it better to use thicker oil in high mileage engine?
High mileage engines will need thicker oils. Thicker oils have additives such as conditioners, antioxidants, seal swells, detergents and friction additives that are engineered to take care of high-mileage engines.
What happens if you use a thicker oil?
Thicker Oil May Not Flow Quickly Enough
Its lower viscosity allows it to flow faster and fill the tiny clearances between parts, leading to a durable, consistent lubricating film. Not only that, but the engine will waste energy pumping the thicker oil, reducing fuel economy.
33 related questions foundCan I put 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.
Is 10w40 good for high mileage?
Is 10w40 Good For High Mileage? The 10w30 and 10w40 oil options are both acceptable for your car, but if you have a high mileage car, you should use the 10w40 oil. Older engines are able to handle higher temperatures and wear and tear more efficiently with thicker oil.
Will thicker oil damage my engine?
If you use oil that is thicker than recommended, you may experience a decrease in fuel economy, a higher load on your engine, and even a shorter engine life. Conversely, if you use oil that is thinner, lighter-weight, you may experience excessive wear and a shorter engine life.
When should I use 5W 20 oil?
5W-20 oil is best for those who live in colder climates with low temperatures. It can be used for light-duty applications, for engines that do not reach very extreme temperatures. 5W-20 oil provides excellent start-up performance in colder temperatures.
What oil should I use for high mileage car?
High mileage oil is designed for vehicles with more than 75,000 miles. Such oil features additives that help protect seals. This leads to less leakage and oil burn-off, which can be common in older cars. If your vehicle is high-mileage and high performance, it's suggested that you go with this type of synthetic oil.
Does thicker oil affect performance?
If you use oil that is thicker than recommended, you may experience a decrease in fuel economy, a higher load on your engine, and even a shorter engine life. Conversely, if you use oil that is thinner, lighter-weight, you may experience excessive wear and a shorter engine life.
Does thicker oil protect?
Thicker oils also compromise cold temperature flow, which may be of concern depending upon climate and season. The best protection against wear is probably a product that is a little thicker (such as SAE 10W-30 or 15W-40) and has more antiwear additives than the oils that support the warranty.
Will 20w50 hurt my engine?
Is 20W-50 Oil Bad For My Engine? 20W-50 is not a very popular oil viscosity. In the wrong engine, it can lead to sludge, excess friction, varnish deposits, problems with oil burning and oil pressure, and even affect your engine life.
Should I get thicker oil in an older engine?
A good high-mileage oil for 10W-30 motor oil is a good one. Older engines use more oil, but it gives them a better fuel economy. Older engines with more than 75,000 miles on them require a thicker oil that will lubricate their critical engine parts and prevent oil leaks, sludge, and deposits from forming.
Can I use 10w30 instead of 5w30?
The answer is yes. You can use 10w30 instead of 5w30 oil since both meet the SAE standard for viscosity at operating temperature. Generally, the viscosity difference between the two is neglectable.
Which oil is thicker 5w30 or 10w30?
So both the oils 5W–30 and 10W–30 have exactly the same viscosity (SAE 30) when your engine is running, and will perform in the same way. However, the 10W–30 oil will be thicker (higher viscosity) than the 5W–30 when it is cool.
What happens if I put 5w30 instead of 5w20?
What Will Happen If You Put 5w30 Instead Of 5w20? Using 5W-30 instead of 5W-20, you risk damaging your car's engine because the internal engine components work with 5W-20 motor oil. 5W-20 and 5W-30 motor oil both have the same winter rating. It means that both motor oils have the same viscosity under cold temperature.
Can I put 5W-20 oil instead of 5w30?
If you are using 5w20 instead of 5w30, you should be careful. The 5W20 is thinner and colder than the 5W10. The use of 5w20 in warmer temperatures may result in more friction and faster engine wear, as opposed to 5w30 in cooler temperatures. It will eventually affect your engine's performance and life expectancy.
Is it OK to mix 5w20 with 5w30?
Yes, you can mix 5W20 and 5W30 oil. However, your engine MUST support it. Both oils should be of the same brand to prevent engine damage and should also be of a similar API service level.
What if I use 0W 20 instead of 5W30?
Can I use a 0W-20 in my car that recommends 5W-30? No, if your owner's manual calls for a thicker oil, you should not use a thinner SAE grade nor use a thicker oil for a recommended thinner oil vis-grade. Using the proper viscosity motor oil will help protect and maintain the performance of your vehicle's engine.
Can I use 20W50 instead of 5W30?
Use in Cars
A 5W-30 oil is commonly used in passenger cars for normal use throughout the year. A 20W-50 oil will not protect a car as well in a cold winter and its greater viscosity will increase drag and friction in a passenger vehicle.
What happens if I put 10w40 instead of 5w40?
Can I Use 10w40 Instead Of 5w40? The synthetic engine will be fine as long as it is fully synthetic. 5W – 40 is better for colder conditions, 10W is thicker to start, so it does not get to places around the engine as quickly as 5W-40, but it all depends on the temperature.
When should I use 10W-40 oil?
So, if you drive in a warm climate — especially more than 32°C (90°F) — or have an engine that runs hotter than others, 10W-40 oil viscosity is a good option. This higher viscosity oil is designed for hotter temperatures and can handle the added heat stress from the environment.
What happens if I put 10w40 instead of 10W30?
Between a 10W-30 and 10W-40, 10W30 motor oil would run smoother in colder climates while a 10W40 would be more effective in preventing engine wear and tear in warmer temperatures.
Can I mix 10W30 with 10w40?
Can You Mix 10w30 And 10/40 Oil? Mixing 10W30 with 10W40 Some people say mixing them is fine as long as you don't live in freezing weather. The motor oils in these blends are not harmful to your vehicle, even if they are mixed with synthetic oils.
