Why Should I Change My Engine Oil?

oil pouring 1Have you ever wondered why it is important to change the oil in your cars engine? Well let me explain why this is so Important, not only to your cars longevity, but also for your wallet.

Motor oil lubricates engine components and cuts down on friction. Friction causes increased heat (which increases wear) and the engine parts to slow down. Motor oil creates a small barrier of film between the parts in order for them to slide past one another. The slippery portion of parts increases effieciency, power and performance. Another important thing to remember is that properly lubricated parts uses less fuel than one that isn’t properly lubricated. Have you ever had your vehicle fail a smog inspection just because your engine’s oil was dirty? It can happen. If an engine is not running efficiently, it causes more fuel contamminates to enter your oil which will cause it to fail smog as it will emit those contaminates into the air.

One more piece to this puzzle to consider is when your car’s engine isn’t running. How can this happen, you ask? When your car’s engine is turned off, the oil drips off the engine. This is where the majority of engine wear comes from start up. Less lubricant on the engine, more friction and more friction equals more wear. Oil also abosorbs the particulates of the engine wear which is filtered by the engines oil filter. As the oil breaks down due to fuel contamination or engine wear, it will develop slug and slug will enter into the engine components causing premature wear. So not only is the oil in need of changing, so does the oil filter. They both play a key role in keeping your engine free of grit.

So by changing your engines oil at the required oil changes, you help reduce the friction, allow the engine to run efficiently which in turn saves you money.

Oil Grades, which one is right for your car’s engine?

Good question. The main differences in engine oil is their viscosity grades. Don’t let the word overwhelm you, is is really quite simple. Viscosity is a measurement of how quickly the oil flows through your engine. Since thicker viscosity oils take longer to flow, it makes sense that an oil with a higher viscosity grade would run more slowly through your engine components. This means that SAE 30 moves faster than SAE 60, for example.

Oils with a higher viscosity provides more lubrication and a greater lever of protection to your engine. The downside is that these oils also take longer to initially cover the engine components after vehicle start up. And remember, start up will cause greater wear on your engine than the general running of the engine.

Now, oil with a lower viscosity provides a quicker flow of oil to cover the engine components, which minimizing the amount of dry running. However, lower viscosity oils provide less lubrication during normal running of the engine.

So what should you do, protect your engine at start up or protect your engine while running? Good question. Do not worry, it does not have to be either or. Oils react differently in different temperatures. These oils have two numbers listed on the bottle. You have probably seen 5W-30 or 10W-40? These are examples of these types of oils.

Anytime you see a number with a W, it represents how the oil will react in colder temperatures (when the engine is just turning over versus when it has been running for a while). As you can see, it has a very low W rating, or viscosity grade. that allows a quick flow of oil when the vehicle is first started. This coats the engine components quickly so there is less dry rubbing between parts. Then as the engine oil temperature increases it becomes thicker and in turn allows for more lubrication.

The moral to this article is, changing your engines oil not only prolongs the life your cars engine, but it also keeps more cash in your wallet. Be sure to check your manufactures recommended oil grade in your owners manual and how often it should be changed. Future articles will cover Oil Additive ratings and Synthetic Engine Oils, are they right for your car’s engine?

Happy Motoring.

Reference: outboardmotoroilblog.com

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3 Responses

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  1. Riley Ann
    Nov 13, 2018 - 02:45 AM

    The engine is an important and expensive component of the vehicle which needs regular maintenance to work smoothly. However, lack of adequate lubrication could jeopardize the performance of the engine which could cost a lot. So, it is really essential to inspect the condition of the lubricant used in the engine. Apart from this, the engine oil loses its ability of lubrication over time and should be replaced with suitable substitutes to keep the engine in working order.

  2. Zoey Young
    Oct 16, 2018 - 04:05 AM

    This article is really informative for newbies like me. I had no idea about the role played by the engine oil in the engine. However, the information given in this article is really helpful for me to understand the role played by the engine oil in the engine and now I know that the engine oil is nothing but a lubricant which is used for the purpose of lubrication of different components of the engine. However, it loses it’s lubrication ability over time and should be replaced after a time interval of about 5,000 miles.

  3. Eric Perez
    Sep 18, 2018 - 03:08 AM

    Thanks for sharing such a nice article about the importance of oil change. Engine oil plays important role in the performance of the engine by reducing the friction among different components of the engine. However, burned engine oil couldn’t do so and needs to be replaced with suitable substitutes. Have a look at https://techplusautomotive.com/european-auto-oil-change/


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