NAPA Auto Parts NAPA Montréal
2085 AV HAIG
(514) 351-4210
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NAPA Motor Oil


Synthetic & Conventional Motor Oil

Motor oil is a crucial component of a healthy engine. It serves as a lubricant that protects the moving parts of the engine from excessive wear and tear due to friction, and it helps prevent overheating and potential damage by regulating the temperature within the engine. Moreover, motor oil contains additives that resist corrosion and contribute to optimal engine performance. By regularly changing your motor oil, you’re protecting your engine from wear and tear and ensuring its longevity.



NAPA Premium full synthetic oils are made entirely from chemical compounds and offer superior performance in extreme temperatures and high-stress conditions. This type of motor oil helps your engine last longer by offering better resistance to oxidation and thermal breakdown. Synthetic oils also have lower volatility, meaning they are less likely to vaporize and burn off at high temperatures, and contain fewer impurities, reducing deposits and sludge buildup in the engine. The result is improved fuel economy and decreased emissions over time. Additionally, synthetic motor oils offer superior cold-weather performance, allowing for easier engine starting in extreme temperatures.

Full synthetic motor oil has become increasingly popular among car owners due to its numerous benefits. The recommended interval for changing full synthetic motor oil varies depending on the vehicle manufacturer’s specifications and your driving conditions. However, most experts agree that changing the oil every 12,000 to 16,000 kilometres or once a year is sufficient for most vehicles under normal driving conditions. Always consult your vehicle’s owner’s manual or a trusted mechanic for specific recommendations on how often you should change your full synthetic motor oil.

NAPA Premium full synthetic motor oil is available in the following grades:

Full Synthetic


NAPA Premium conventional motor oil is a type of lubricant that is derived from crude oil. This crude oil goes through a refining process that involves heating it to high temperatures and separating out the different components. Impurities such as sulphur and nitrogen are removed, while additives are put in to improve performance. Conventional motor oils are typically made up of base oils derived from petroleum or mineral sources. They’re designed to extend the life of an engine by protecting against wear and tear and reducing friction, and have been the most popular type of motor oil for decades.

Conventional motor oil is affordable and widely available but may require more frequent changes compared to synthetic options. Recommended usage and maintenance tips for conventional motor oil include changing the oil every 3,000 to 8,000 kilometres or every three months, whichever comes first. It’s also important to use the recommended viscosity grade for your engine and to regularly check and top up your vehicle’s oil level.

Make sure to consult your vehicle’s owner’s manual and speak with a trusted mechanic to determine which type of motor oil is best for your specific needs.

NAPA Premium conventional motor oil is available in the following grades:



How to Choose the Right Motor Oil

Understanding the basics of engine oil is essential for any vehicle owner. Engine oil serves as a lubricant that helps reduce friction between moving parts in the engine, thus preventing wear and tear. Thicker oils are more suitable for higher temperatures, while thinner oils are more suitable for colder temperatures. One of the most important steps when choosing motor oil for your engine is to consult your vehicle’s owner’s manual.

Viscosity is a crucial factor to consider when choosing a motor oil. Viscosity refers to the oil’s resistance to flow, and it is measured using a rating system developed by the Society of Automotive Engineers (SAE). Each SAE rating, or grade, consists of two values, such as 5W-30. The letter W stands for winter, and the number preceding it represents the oil’s viscosity at low temperatures. The second number represents the oil’s viscosity at high temperatures. A lower viscosity grade means that the oil flows more easily at low temperatures, while a higher grade means that it maintains its thickness better at high temperatures.

For instance, 5W-30 means that the oil has a viscosity of 5 at low temperatures and 30 at high temperatures. Understanding viscosity grades will help you choose an appropriate motor oil for your car in terms of engine protection and performance.

To choose the right viscosity for your engine, you need to consider several factors, including the climate conditions in which you drive, your vehicle’s age, and the manufacturer’s recommendations.


Can You Mix Motor Oils with Different Viscosities?

Many car owners wonder whether it’s safe to mix different-viscosity oils. The answer is not straightforward, as it depends on the type of oil and the vehicle’s specifications. Generally, mixing different viscosities won’t cause any significant problems. However, mixing synthetic and conventional oils may lead to decreased performance and could even damage your engine.

If you’re in a situation where you need to top up your vehicle with a different brand or type of motor oil than what you currently have in the engine, it’s better to use a mix than to run low on oil. That said, different weights of motor oil have different chemical compositions and additives. Mixing them can lead to unpredictable results, such as reduced lubrication or increased engine wear.


Does Motor Oil Affect Fuel Economy?

Motor oil plays a critical role in your vehicle’s fuel efficiency. It lubricates the moving parts of the engine to reduce friction, preventing wear and tear that can lead to decreased performance. To improve fuel efficiency, look for motor oils with low viscosity. Thinner oils create less resistance, allowing the engine to operate more efficiently. Synthetic blends or fully synthetic oils tend to have lower viscosity than conventional motor oils. Additionally, some motor oils contain additives that can enhance fuel economy. However, it’s essential to choose a motor oil that meets your vehicle manufacturer’s specifications. Regularly changing your motor oil also helps maintain optimal fuel efficiency by ensuring the engine is always running smoothly and without excess friction.



Oil Change
  • How to Do an Oil Change

  • Changing your engine’s oil and oil filter is essential to protecting your engine. If you follow these tips and steps to do an oil change, you can improve your DIY skills and save money by learning how to change your engine oil and oil filter at home.
Engine Oil
  • Does Engine Oil Expire?

  • A vehicle’s fluids, including its engine oil, are crucial to its overall health. In this article, we go over the most common types of engine oil, how to choose the right oil for your needs, how long engine oil typically lasts, and how you can tell if your oil is expired.
  • Conventional vs. Full Synthetic

  • Motor oil is essential to the overall health and functionality of your car. This makes picking the right oil extremely important. Let’s go over how engine oils are classified, the difference between conventional and synthetic oils, and whether it’s safe to mix oils.