What is 10w30 sj oil?

The 10W30 designation on engine oil means that the viscosity of the oil is rated at 10W when an engine is cold and 30 when the engine is hot. This is different than an oil labelled 5W30, which has a thinner viscosity when the engine is cold at 5W.

What does SJ stand for in oil?

Gasoline Engines

What’s the difference between 10 W 30 oil and 30 oil?

The main difference between 10w30 and 5w30 engine oil is their viscosity grades. 5w30 is less viscous than 10w30. 5w30 is also the thinner engine oil of the two at lower temperatures. 10w30 provides sealing action in the engine due to the fact that it is thicker than 5w30 engine oil.

Will 10W30 oil hurt a 5w30 engine?

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. 5w30 and 10w30 engine oils have close viscosity, and thus there is no harm in mixing them.

What does oil do within an engine?

Motor oil provides lubrication to the many moving parts of an engine, which helps to avoid damage and keep your engine running smoothly. Each time your engine runs, by-products from combustion are collected in your engine oil.

Can you put 10w40 in a 5w30 engine?

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.

Can I use 5w30 instead of SAE 30?

5w-30 is fine to use. It has the same flow rate as SAE30 at normal operating temps. The way oil works is, the first number is flow rate at ambient temp.