Is it Okay to Mix 5w 20 and 5w 30? The Definitive Guide to the Best Oil for Your Car

Introduction: What is the Difference Between 5w20 and 5w30 Oil?

A question that many people ask is “can I mix 5w 20 and 5w 30”. The answer is yes. These two types of engine oil are not compatible with each other and you shouldn’t mix them up unless you have a special synth blend oil. The type of engine oil that you need to use depends on the season or where you live. If you live in an area that gets very cold weather or very hot weather than you want to use a different oil. If you live in the middle of the country, then it is normal to use both oils. In this article we will look at the difference between 5w 20 and 5w 30.
Difference Between:
5W-20 is a light oil. It has a low viscosity and is used in the hot summer months or in cold climates. It also can be used for certain 6 cylinder engines that have a turbo charger installed on them. The difference between 5W-20 and 5W-30 is just the W for winter or weight of oil. A W represents a one weight grade heavier than the number represents. For example, 5W-30 is a one weight grade heavier than 5w 20. This means that it is heavier oil. It has more viscosity and less volatility than the 5W-20.

can i mix 5w 20 and 5w 30
can i mix 5w 20 and 5w 30

What are the Benefits of Using a W-Series Oil in Cold Weather Conditions?

Some people choose to use the 5w-30 oil in the winter because it is thinner for better cold weather operation. The fact is, using a thinner oil does not really help that much. A thicker oil is more resistant to freezing and will withstand colder temperatures better than a thinner one which means that your engine will run cooler without damaging it. The 5w 20 is a good choice when you live in the middle of the country because it doesn’t use a thicker oil than what is needed. A thicker oil will be more susceptible to “ponding” which happens when hot oil that has been used in the engine pools on the bottom of the pan and freezes. This ponded oil doesn’t allow for proper cold weather operation and puts unnecessary wear on your bearings, seals, and pistons.
Some people have told me that the thinner oil allows for more protection for their cars in the winter. This is because oil that is too thick to flow at cold temperatures will not lubricate your engine as well. What they don’t realize is that a thicker oil doesn’t have this problem, and can still provide good lubrication in cold temperatures. Too little lubrication will cause metal-to metal contact which will prematurely wear the engines parts and could even cause major damage.

can i mix 5w 20 and 5w 30
can i mix 5w 20 and 5w 30

How Do You Know When to Switch From W-20 to W-30 Motor Oil?

The general rule is to switch from a 5w-20 to a 5w-30 oil when the temperatures reach 0 degrees or lower. It doesn’t make much of a difference what you use for your engine as long as it is 10w-30, 5w 20, or 5w 30. The main thing that you want to consider is the weight of the oil which is measured by the viscosity. A thicker oil will provide better protection from freezing temperatures and a thinner oil will provide better cold starting conditions and allow more heat to escape from the engine.
The viscosity of the oil is determined by the thickness and the base oil used. The thinner the oil, the lighter it is and therefore it offers less protection when the car is at extreme temperatures. The heavier oils provide a better cold starting conditions for your car but will not allow as much heat to escape from your engine.

can i mix 5w 20 and 5w 30
can i mix 5w 20 and 5w 30

How Much Does Mixing Different Sized Oils Cost You in Mileage?

It depends. The same oil will be heavier if it contains a thicker oil and lighter if it contains a thinner oil. You will have to figure out exactly how much different sizes of oil weigh in order for you to know for sure. If you are going from a 5w20 to a 5w30, the difference is going to be around 0.25 ounces more than what the numbers say, so don’t worry about it too much in terms of mileage loss. However, 5w 30 is about 0.25 ounces heavier than 5w 20 so if you want to keep things even, then you will have to step it up a little bit.
It depends. The same oil will be heavier if it contains a thicker oil and lighter if it contains a thinner oil. You will have to figure out exactly how much different sizes of oil weigh in order for you to know for sure. If you are going from a 5w20 to a 5w30, the difference is going to be around 0.25 ounces more than what the numbers say, so don’t worry about it too much in terms of mileage loss. However, 5w 30 is about 0.25 ounces heavier than 5w 20 so if you want to keep things even, then you will have to step it up a little bit.

can i mix 5w 20 and 5w 30
can i mix 5w 20 and 5w 30