Is Synthetic Blend Superior to Traditional Synthetics?

Diving into the world of engine oils, car enthusiasts and mechanics often debate the pros and cons of synthetic blends, fully synthetic oils, and conventional oils. Just how superior is a synthetic blend to traditional synthetics? Let’s take a thorough look at the facts and figures to find out.

Understanding Synthetics and Blends

First, let’s clear up a common misconception: what constitutes a synthetic blend oil? In the world of motor oils, a blend isn’t defined by a specific percentage of synthetic content, but rather by how it performs in different conditions. Synthetic blends typically contain both conventional and synthetic base oils, designed to offer a balance between the lower cost of conventional oils and the superior performance of fully synthetic oils.

On the other hand, fully synthetic oils are made entirely from synthetic base stocks, with no conventional oil blended in. These oils are known for their exceptional performance in a wide range of conditions and temperatures, as well as their ability to reduce wear and extend engine life.

Facts About Conventional Oils

Conventional oils, which make up the largest portion of the market, are refined from petroleum. These oils can vary in quality depending on the refining process and do not perform as well as their synthetic counterparts in extreme conditions. However, they are still a popular choice due to their lower cost and ease of sourcing.

Performance and Benefits of Synthetic Blends

Despite their name, synthetic blends are often more closely related to fully synthetic oils in terms of performance. They offer better wear protection, slightly lower volatility, and improved cold-start properties compared to traditional conventional oils. However, they generally don’t match the performance and longevity of fully synthetic oils in extreme scenarios.

For example, in cold weather conditions, where moisture can combine with acids to form sludge and corrosion, synthetic blends can offer better protection than conventional oils. The synthetic component helps reduce viscosity change and improve low-temperature flow properties.

The Importance of Fully Synthetic Oils

While synthetic blends are steps ahead of conventional oils, fully synthetic oils provide the ultimate advantage. These oils are designed to handle the most demanding driving conditions and harsh environmental influences. They exhibit consistent viscosity, excellent wear protection, and extreme-resistance properties.

One of the most significant benefits of fully synthetic oils is their ability to maintain lubrication properties at high temperatures. Unlike conventional and synthetic blends, which can degrade under extreme heat, fully synthetic oils retain their effectiveness without breaking down as quickly, thus extending the time between oil changes and reducing the risk of damage from extreme conditions.

When to Choose Synthetic Blends or Fully Synthetic Oils

The choice between a synthetic blend and fully synthetic oil ultimately depends on your specific driving conditions and vehicle requirements. For mild to moderately challenging driving conditions, a synthetic blend may suffice and provide added protection beyond that of conventional oils.

However, if you frequently drive in extreme conditions—such as high temperatures, extended highway driving, or performance driving—a fully synthetic oil will offer the best protection. High-quality fully synthetic oils are recommended by many manufacturers for scenarios like towing heavy loads, severe weather conditions, or high-performance vehicles.

In conclusion, while synthetic blends offer advancements over conventional oils, fully synthetic oils provide the ultimate performance and longevity, especially in demanding conditions. By understanding the differences, you can make an informed decision that best suits your vehicle and driving needs.

If you're still unsure or need more information, consulting with a professional mechanic can provide the insights you need to choose the right oil for your car.