Is it OK to use 5w40 instead of 10W40?
The 5W40 is thinner than the 10W40 at lower temperatures. But when the temperature is higher, both motor oils similarly perform their intended functions (using the same viscosity). However, the main difference between these two engine types is that the 5W40 can work better than 10W40 in very cold places.
Does 10w40 hurt 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.
What oil is thicker 5w30 or 5w40?
Both 5w30 and 5w40 are motor oil but they have different viscosity. 5w30 works smoothly on the engine as it is thicker. On the other hand, 5w40 is not that much thicker. 5w40 has a higher viscosity rate as compare to 5w30.
Will 5w30 hurt a 0W20 engine?
These days every motor oil is multigrade motor oil. But among them, 0w20 and 5w30 are famous due to their top-notch performances. If you add 5w30 to your vehicle instead of 0w20, the performance of your vehicle will not affect much. Your vehicle will continue to run smoothly and providing you comfortable rides.
What happens if wrong oil in car?
Using the wrong fluid can cause poor lubrication, overheating, and possibly transmission failure. A mechanic might not be able to reverse the damage, even by flushing the transmission. Mistakenly adding motor oil or brake fluid can also destroy your transmission.
Do high mileage cars need thicker oil?
For an older, high-mileage passenger car, it is recommended to switch to a thicker viscosity oil, such as 10W-30, when approaching and passing 100,000 miles, to lubricate the engine well for preservation.
Is it better to use thicker oil in high mileage engine?
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.
What is the difference between 5W30 and 5w40 oil?
The viscosity of oil is closely related to its thickness. If motor oil is thick, then it is more viscous. If the oil is thinner, it has a lower viscosity. In general, viscosity refers to the ease of liquid flow. 5w30 and 5w40 motor oils have the number 5 which is then followed by W. W represents winter and not weight.
Is 10W30 thicker than 5W30 motor oil?
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.
Can I use 10W30 instead of 5W30 oil?
There is no major issue should you use 10w30 instead of 5w30. Sometimes, it is even preferable to get thicker oil when running on engines with higher mileage. Another minor benefit of utilizing 10w30 is that it contains less improvers in viscosity .
What does the “5W-40” in motor oil mean?
The two numbers in the 5W-40 indicate the weight or viscosity of the engine oil as tested by SAE. Viscosity is defined as a fluid’s resistance to flow: The higher the number, the higher the fluid’s resistance to flow, or the thicker the fluid.