Every once in a while, adding new engine oil for lubrication is necessary despite whether it’s a car’s engine or not.

This subject concerning the effects of adding new engine oil to old oil in your car is appropriate for current car owners as well as aspiring owners.

If you fall under either category, you ought to know how to check engine oil purity.

Simply, remove the dip stick and assess the color of the oil currently present in the vehicle’s engine.

Engine oil is a crucial factor that affects your vehicle’s performance.

This knowledge helps you to determine when to replace the oil inside your engine.

Because effective running of the vehicle is important to you.

Some car owners will prefer to buy new oil and then periodically add it to the already used oil when it gets low.

But which is the best option between getting the oil drained and then replacing it with brand new oil afterwards or just adding new oil to the existent one.

Using Old Oil in Your Car Engine Instead of new oil.

Car manufacturers have a recommendation as far as changing the oil is concerned.

This recommendation considers the effects of adding new engine oil to old oil in your car.

Additionally, manufacturers also recommend that you change the oil instead of adding new oil to already used engine oil.

But this is relative to the number of miles that you have placed on your vehicle.

Further, the consideration looks at how you use the vehicle.

Let’s face the fact that all drivers use their vehicles differently, varying from daily drive cars to occasional drive cars.  

Once you purchase your vehicle, the dealer usually indicates the number of miles after which you must change the oil.

Further, your mechanic will also have a recommendation of the same and that will cost you some cash.

But the question is, among the two, that is, frequently replacing oil after some miles and adding new oil to the old, which one is the best?

You should change the oil rather than continually add new oil to your car.

This minimizes the effects of adding new oil to old oil in your car.

This involves going under the engine, finding the oil filter and drain plug and draining the oil.

Afterwards you can add the new oil.

The process seems simple but it isn’t and that’s why we would recommend consulting a professional rather than doing it by yourself. 

Effects of Old oil on your engine performance.

When you first put oil in your engine, it appears as clear and pure.

But as the mileage accumulates the oil changes to a dull color as well as reducing in quantity within the engine.

Sufficient amount of oil is important for lubrication purposes as it ensures that the moving engine parts are working without causing friction.  

Because of this function of the engine oil, it accumulates debris that negatively cause the effects of adding new engine oil to old oil in your car.

In other words, it is not advisable to add new engine oil to old oil in your car.

Preferably, you should just drain the dirty oil first before adding the new oil.