Question: When Should I Switch From 5w20 To 5w30?

Is Thicker oil better for high mileage cars?

A: Yes.

This is a practical method to improve oil pressure in an older, high-mileage engine.

The slightly thicker oil film from the heavier base weight oil – 10W – can help protect worn engine bearings as well..

Can you put 10w30 in a 5w20 engine?

10W30 is thicker and protect older engine with its sealing capability. 5W20 is thinner multi-grade oil that is pertinent for quick starts in the lowest temperatures. … So, next time when somebody asks you can I use 10w30 instead of 5w20, you have the right answer!

Is it OK to switch from 5w20 to 5w30?

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.

How much thicker is 5w30 than 5w20?

On the hand 5w30 is thicker and is best for warm temperatures. In terms of viscosity , 5w20 has a viscosity grade of 8.9 at 1000C while that of the 5w30 is 11.0.

What happens if you use 10w30 instead of 5w30?

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.

Which is better 5w 20 or 5w 30?

The main difference between 5W-30 and 5W-20 motor oil is that the latter gives a slight bump in fuel efficiency. When used in a vehicle’s engine, 5W-20 oil creates less friction due to its thinner viscosity (or thickness), meaning it drags less across engine parts like the crankshaft, valvetrain, and pistons.

When should I switch from 5w30 to 10w30?

At operating temperatures, both oils will have the same viscosity (30) and will flow and protect identically. If the oil will be in the engine during winter and you live in a place where it gets cold during these months, use 5w30 oil. If it will only be in the engine during the summer, use 10w30.

Why does Ford use 5w20 oil?

The main reason 5W-20 was specified for your engine is to increase the CAFE reported to the Federal Government. CAFE (Corporate Average Fuel Economy) is the combined average fuel economy of all of a vehicle manufacturers product line.

Can you put 0w20 in a 5w20 engine?

Yes they are totally interchangeable, the only time I could see it worth going out of your way to find the 0w20 is if you live far far north, otherwise the difference between 0w20 and 5w20 is minimal.

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.

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

Ford specifies only one viscosity rating for this vehicle, namely SAE 5W-20. … But, the statement from Ford also implies that use of oil other than 5W-20, such as 5W-30, will reduce the service life (“durability”) of the engine. Consequently, I would stick with the 5W-20. Synthetic oil is much preferred, of course.

Is it OK to switch from 10w30 to 5w30?

Its ok to use 5w30 it has the same operating viscosity as the 10w30,I actually prefer 5w30 or even 0w20 to silence the lifters. I’d rock 0w20 every chance I got. Thinner at startup is better, and today’s oils are so good that the thinness is not an issue.

Is 5w20 good for summer?

5W20 synthetic is fine in the summer.

Will 5w20 hurt a 5w30 engine?

Probably not. 5w20 oil is fairly light oil and is generally designed to work with newer engines. Motor oil has become part of a manufacturers program to allow engines to get higher fuel mileage. Lighter oils take less HP to pump through an engine than heavier oils.

What happens if you put the wrong oil in your car?

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