Fuel efficiency is a key concern for any car owner and a primary focus for automakers. Choosing the right motor oil can play a significant role in your car’s performance and gas mileage. Let’s take a closer look at whether an oil change can make a noticeable difference in fuel economy and break down how synthetic oils like Quaker State® Full Synthetic motor oil 0W-20 and AMSOIL Signature Series 0W-16 100% Synthetic Motor Oil impact engine efficiency.
Understanding Viscosity and Why It Matters
Viscosity refers to how smoothly oil flows through an engine. Think of it like comparing water to honey. Thicker oil, like honey, takes more effort to move. Lower-viscosity oil, on the other hand, reduces resistance so your engine can work more efficiently, which leads to better fuel economy.
How Low-Viscosity Oils Help Fuel Efficiency
Using oil with a lower viscosity allows it to travel through the engine without creating unnecessary friction. This helps the engine perform better and use less fuel. It’s like switching from heavy work boots to lightweight sneakers—it just feels easier. Quaker State® Full Synthetic motor oil 0W-20, for example, is designed to flow effortlessly, helping your engine stay efficient and saving you money on gas.
New Standards in Oil Viscosity
Engine technology has advanced, and motor oils have evolved to keep up. Decades ago, 10W-40 was a common choice. Now, thinner oils like 5W-30, 0W-20, or 0W-16 are becoming the norm. These changes reflect the push for increased efficiency, delivering better performance without sacrificing fuel economy.

The Advantage of Synthetic Oils
Switching from conventional oil to synthetic oil is one of the simplest ways to enhance your vehicle’s fuel efficiency.
Why Synthetic Oils Work Better
Synthetic oils are crafted for consistency. While standard oils contain molecules of various shapes and sizes, synthetic oils like AMSOIL Signature Series 0W-16 are built with uniform molecular structures. This means they flow more efficiently, reducing friction and helping the engine use less energy. As a result, you save fuel while maintaining high performance.
Cold-Weather Performance
Cold temperatures can make conventional oil thick and sluggish, forcing your engine to work harder and burn more fuel. Synthetic oils are engineered to retain their fluidity in cold climates, ensuring your engine runs smoothly from the start. This can make a significant difference in fuel efficiency, especially during winter months.
Steps to Maximize Fuel Efficiency
Using the right synthetic oil is important, but regular oil changes are just as crucial. By staying on schedule, you ensure your engine avoids unnecessary wear and tear. Pairing routine maintenance with high-quality products like Quaker State® Full Synthetic or AMSOIL Signature Series 0W-16 can keep your engine in top shape and help you get the most out of every gallon.
Synthetic Oils Adapt to Any Climate
One advantage of synthetic oils is their ability to perform well in all types of weather. Whether you’re driving in a heatwave or freezing temperatures, synthetic oils maintain their stability. This consistency helps your engine run smoothly while maximizing mileage.
The Link Between Oil Changes and Gas Mileage
An oil change isn’t just about protecting your engine—it’s also an opportunity to improve fuel efficiency. Fresh oil reduces friction, keeps the engine clean, and ensures optimal performance. Combined with synthetic oil, regular changes help you maintain steady gas mileage while extending your engine’s lifespan.
For insights on how low oil viscosity impacts fuel efficiency and engine performance, click here to learn more from Machinery Lubrication.

Final Thoughts
Changing your oil may not single-handedly transform your fuel efficiency, but it does have a measurable impact over time. Upgrading to synthetic oils like Quaker State® Full Synthetic 0W-20 or AMSOIL Signature Series 0W-16 can reduce friction, improve engine reliability, and enhance gas mileage. By understanding how oil viscosity, quality, and routine maintenance contribute to performance, you can make smarter decisions for your vehicle and save money in the long run. For more details on high-performance motor oils, explore Quaker State here and AMSOIL Signature Series 0W-16 100% Synthetic Motor Oil here.