Question: Should I Use 5w20 Or 5w30?

Can I add 5w30 to 5w20?

Sure you can, as long as either viscosity is suitable for your engine.

On my last change, I mixed a 5W-20 with an HDEO 5W-40 and then topped up a bit with some 5W-30..

What happens if I put the wrong oil in my car?

The brand of motor oil matters little, but its viscosity grade (10W-30, for example) is important. … Using the wrong oil can lead to reduced lubrication and shorter engine life. If the manual says to use synthetic oil, do so.

Is 5w30 thicker than 5w20?

The viscosity of the winter number is tested at 0 degrees Fahrenheit. The 30 refers to the viscosity at higher temperatures. … So, due to viscosity, 5w20 is a thinner oil during operating temperatures, whereas 5w30 is thicker during operating temperatures.

What happens if I put 10w40 instead of 5w30?

If you use 10-w-40 instead of 5-w-30 specified by the manufacturer then the viscosity of 10-w-40 used by you will be higher and oil thicker than what is specified during winters. Similarly the oil viscosity will be higher and oil thicker than specified during summers.

Can I use 5w30 instead of 5w20 in my Kia?

Banned. All KIA dealers I’ve ever been to use 5W-20 semi-synthetic. The only 5w-30 they had was fully synthetic. You should use 5W-20 if you have an EX.

Can I use any 5w30 oil in my car?

If your car takes 5w30 oil and you put 5w30 oil in it, it’ll be fine. Totally wrong, these days the spec compliance of an oil is often more important than the viscosity. Don’t put any 5w30 in, put the correct 5w30 in.

What happens if you put 5w 20 instead of 5w 30?

Due to the increased resistance of the thicker 5W-30 oil, your engine will produce slightly lower fuel economy and horsepower output. You also risk engine damage when using 5W-30 instead of 5W-20, as the internal engine components are specifically designed to be used with 5W-20 motor oil.

When should I switch from 5w20 to 5w30?

On a vehicle engine with 5W20 printed on the oil fill cap…. If the engine was originally designed to run 5w-30 then make the switch immediately. See if any of your engines were back specced from 30 to 20. Oil fill cap is not stamped by the engine designers.

Can you put 10w30 in a 5w20 engine?

Originally Answered: Can I put 10w30 instead of 5w20? You can, but you will get worse mileage, and in most cases shorten the life of your engine, as it will take longer to pump up pressure for your bearings and lifters, and won’t spray your lower cylinders for an extra second or so on each cold start.

Is 5w20 better than 5w30?

The key difference between 5W20 and 5W30 motor oil is that the former is thicker or less viscous. … The more viscous motor oil is, the better it will be able to resist the heat and not break down. In this case, 5w30 oil will provide better overall engine protection than 5w20.

Will 5w30 hurt a 5w20 engine?

There is no harm in using 5W30 instead of 5W20.