10 Best Oils For Fuel Economy: Boost Mileage & Save Money

Looking for the best oils to boost your fuel economy? Discover top synthetic blends and additives designed to maximize efficiency, save money, and keep your engine running smoothly mile after mile.

Saving fuel starts with the right oil. Choosing the best oil for fuel economy can make a big difference in your car’s performance. Let’s explore top options that keep your engine running smoothly.

Mobil 1 and Motul lead the way with synthetic formulas designed for efficiency. Prolube and BestLine Racing offer additives that boost power and reduce wear. Each product is crafted to help you save money and extend engine life.

Ready to find the perfect oil for your ride? Let’s dive in and discover how these products can transform your driving experience.

List of Top 10 Oils For Fuel Economy

Image Title Best For Price
Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-20, 5 Quart Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-20, 5 Quart

This Mobil 1 oil is perfect for anyone who wants a clean and protected engine. It’s great for those who want to save on fuel and make their engine last longer.

Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-16, 5 Quart Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-16, 5 Quart

This Mobil 1 oil is perfect for drivers who want the best for their car. It helps your engine run clean and last longer.

Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-30, 5 Quart Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-30, 5 Quart

Perfect for drivers who want to improve fuel economy and keep their engine clean. This oil uses a Triple Action Formula to protect parts, lasts up to 10,000 miles, and meets ILSAC GF-6 standards to prevent damage and sludge.

Prolube Oil Treatment - Engine Oil Additive for Gas & Diesel Engines - Reduces Wear, Noise, Vibration - Boosts Fuel Economy & Horsepower - Works on Transmissions & Differentials (1QT) Prolube Oil Treatment – Engine Oil Additive for Gas & Diesel Engines – Reduces Wear, Noise, Vibration – Boosts Fuel Economy & Horsepower – Works on Transmissions & Differentials (1QT)

Perfect for car, truck, and SUV owners who want to cut engine noise, boost fuel economy, and extend engine life. Ideal for gas and diesel engines, this additive works with synthetic or conventional oils to reduce wear, smooth vibrations, and enhance performance in daily drivers or heavy-duty vehicles.

Prolube Oil Treatment - Engine Oil Additive for Gas & Diesel Engines - Reduces Wear, Noise, Vibration - Boosts Fuel Economy & Horsepower - Works on Transmissions & Differentials (16oz) Prolube Oil Treatment – Engine Oil Additive for Gas & Diesel Engines – Reduces Wear, Noise, Vibration – Boosts Fuel Economy & Horsepower – Works on Transmissions & Differentials (16oz)

It is great for drivers who want a smooth, quieter ride and fuel savings. It works on gasoline, diesel, transmissions, and any engine, so fleet owners and mechanics can use it.

Motul 8100 X-clean EFE 5W-30 Full Synthetic Motor Oil | Fuel Economy Formula, Helps Protect Emissions Systems, Clean Engine Performance | Long Drain Capable, Improved Engine Responsiveness | 5L Motul 8100 X-clean EFE 5W-30 Full Synthetic Motor Oil | Fuel Economy Formula, Helps Protect Emissions Systems, Clean Engine Performance | Long Drain Capable, Improved Engine Responsiveness | 5L

This Motul 8100 X-clean EFE 5W-30 is perfect for drivers who want better fuel economy and longer oil changes. It’s great for modern engines with emissions systems, keeping them clean and efficient.

Motul 8100 X-clean EFE 5W-30 Full Synthetic Motor Oil | Fuel Economy Formula, Helps Protect Emissions Systems | Clean Engine Performance | Long Drain Capable, Improved Engine Responsiveness | 1L Motul 8100 X-clean EFE 5W-30 Full Synthetic Motor Oil | Fuel Economy Formula, Helps Protect Emissions Systems | Clean Engine Performance | Long Drain Capable, Improved Engine Responsiveness | 1L

If you drive a modern car and want maximum fuel savings without sacrificing engine protection, this oil is built for you.
It’s perfect for drivers who demand clean performance, longer drain intervals, and smoother engine response—especially in vehicles with emissions-sensitive systems.

Mobil 1 0W-30 (Advanced Fuel Economy) Synthetic Motor Oil - 1 Quart (Pack of 6) Mobil 1 0W-30 (Advanced Fuel Economy) Synthetic Motor Oil – 1 Quart (Pack of 6)

This oil is for car owners who want top engine care and better fuel efficiency. It works well in cars needing synthetic 0W-30 oil for smooth performance.

BestLine Racing - Engine Oil Additive for all Gas & Diesel Engines - Reduces Wear, Noise, Vibration - Boosts Fuel Economy & Horsepower - Made in the USA, Treats 5-quarts of oil. BestLine Racing – Engine Oil Additive for all Gas & Diesel Engines – Reduces Wear, Noise, Vibration – Boosts Fuel Economy & Horsepower – Made in the USA, Treats 5-quarts of oil.

This product is perfect for anyone who wants to keep their engine running smoothly. It works for all gas and diesel engines.

Castrol GTX High Mileage 10W-40 Synthetic Motor Oil, 1 Quart, Pack of 6 Castrol GTX High Mileage 10W-40 Synthetic Motor Oil, 1 Quart, Pack of 6

This motor oil is perfect for drivers who want to protect their engines and improve fuel economy. It’s great for high-mileage cars and helps reduce leaks while fighting sludge build-up.

Detailed Reviews

Discover the best oils for fuel economy with our expert guide. We’ve analyzed top products, focusing on performance and value. Find the perfect oil to boost your car’s efficiency and save money.

1. Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-20, 5 Quart

Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-20, 5 Quart

Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-20 helps your engine run smoothly. It is low-viscosity, which means it gives better fuel economy. You can go longer between oil changes—up to 10,000 miles.

This oil uses Mobil 1’s Triple Action Formula to protect your engine. It keeps your engine clean, protected, and performing well. It also helps prevent damage to key parts and reduces deposits and sludge.

It meets ILSAC GF-6 standards for extra protection. It fights LSPI and timing chain wear. This oil helps extend your engine’s life.

Pros Cons
  • Boosts Fuel Economy with low-viscosity 0W-20 formula.
  • Triple Action Protection for engine performance, protection, and cleanliness.
  • Long-Lasting up to 10,000 miles between oil changes.
  • Meets strict ILSAC GF-6 standards for engine protection.
  • Prevents damaging deposits and sludge buildup.
  • Higher price than conventional oils, may not fit all budgets.
  • Not suitable for older engines, check compatibility first.
  • Frequent changes might still be needed for high-mileage cars.

Perfect For:

This Mobil 1 oil is perfect for anyone who wants a clean and protected engine. It’s great for those who want to save on fuel and make their engine last longer.

Ready to Purchase?

2. Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-16, 5 Quart

Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-16, 5 Quart

Boost your ride with Mobil 1 Advanced Fuel Economy! This 5-quart, full-synthetic motor oil is designed to improve fuel economy and deliver outstanding engine performance. It’s the perfect choice for drivers who want to get the most out of their vehicle.

Mobil 1’s Triple Action Formula protects your engine from wear and tear, keeping it clean and running smoothly. It helps protect critical engine parts for up to 10,000 miles between oil changes.

This low-viscosity oil meets ILSAC GF-6 standards, providing low-speed pre-ignition protection and timing chain wear protection. It helps extend engine life by preventing damaging deposits and sludge buildup.

Pros Cons
  • Improves fuel economy with its low viscosity.
  • Delivers outstanding engine performance and protection.
  • Protects your engine for up to 10,000 miles.
  • Keeps your engine clean and prevents sludge.
  • Extends engine life with lasting protection.
  • Higher price than conventional oils, may not fit all budgets.
  • Not suitable for older engines, check compatibility first.
  • Limited availability in some regions, hard to find locally.

Perfect For:

This Mobil 1 oil is perfect for drivers who want the best for their car. It helps your engine run clean and last longer.

Ready to Purchase?

3. Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-30, 5 Quart

Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-30, 5 Quart

Get ready to experience the power of Mobil 1 Advanced Fuel Economy motor oil! This oil is designed to help your engine run better and longer.

It uses a special formula to keep your engine clean and protected. This oil can also help you save on fuel.

It protects your engine for up to 10,000 miles. It meets important standards. Your engine will love it!

Pros Cons
  • Boosts fuel economy with low-viscosity synthetic formula
  • Protects engines up to 10,000 miles between oil changes
  • Fights sludge and deposits for a cleaner, longer-lasting engine
  • Meets latest GF-6 standards for modern engine protection
  • Triple defense locks in performance and wear resistance
  • Higher price than conventional oils
  • Not suitable for all older engine types
  • 5-quart size may not match every vehicle

Perfect For:

Perfect for drivers who want to improve fuel economy and keep their engine clean. This oil uses a Triple Action Formula to protect parts, lasts up to 10,000 miles, and meets ILSAC GF-6 standards to prevent damage and sludge.

Ready to Purchase?

4. Prolube Oil Treatment – Engine Oil Additive for Gas & Diesel Engines – Reduces Wear, Noise, Vibration – Boosts Fuel Economy & Horsepower – Works on Transmissions & Differentials (1QT)

Prolube Oil Treatment - Engine Oil Additive for Gas & Diesel Engines - Reduces Wear, Noise, Vibration - Boosts Fuel Economy & Horsepower - Works on Transmissions & Differentials (1QT)

Prolube Oil Treatment is a powerful additive for your engine. It helps boost performance, making your engine run smoother and quieter. It also lowers vibration and noise, so your driving experience feels better every day.

This product is easy to use and works with gasoline, diesel, transmissions, and differentials. Just add a small amount—1 oz per quart for regular engines or 2 oz for heavy-duty ones. It can help save fuel, reduce engine wear by up to 45%, and extend the life of your engine. Perfect for cars, trucks, SUVs, and industrial machines.

Pros Cons
  • Boosts horsepower and reduces engine noise instantly.
  • Saves fuel with advanced friction-reducing formula.
  • Extends engine life by reducing wear up to 45%.
  • Works with gas, diesel, transmissions, and differentials.
  • Easy to use with precise mixing ratios for all engines.
  • May not work for all engine types.
  • Some users report limited effectiveness.
  • Requires careful measuring for best results.

Perfect For:

Perfect for car, truck, and SUV owners who want to cut engine noise, boost fuel economy, and extend engine life. Ideal for gas and diesel engines, this additive works with synthetic or conventional oils to reduce wear, smooth vibrations, and enhance performance in daily drivers or heavy-duty vehicles.

Ready to Purchase?

5. Prolube Oil Treatment – Engine Oil Additive for Gas & Diesel Engines – Reduces Wear, Noise, Vibration – Boosts Fuel Economy & Horsepower – Works on Transmissions & Differentials (16oz)

Prolube Oil Treatment - Engine Oil Additive for Gas & Diesel Engines - Reduces Wear, Noise, Vibration - Boosts Fuel Economy & Horsepower - Works on Transmissions & Differentials (16oz)

Prolube Oil Treatment boosts your engine’s power and cuts noise. It works for gas and diesel engines, plus transmissions. This 16oz formula saves fuel and extends engine life.

It reduces wear by up to 45% and works with synthetic or conventional oils. Use it in cars, trucks, SUVs, or machinery for smooth, efficient performance.

Pros Cons
  • Boosts horsepower and reduces engine noise.
  • Saves fuel by cutting friction.
  • Reduces wear up to 45% for longer engine life.
  • Works with gasoline and diesel engines and transmissions.
  • Easy mixing: 1 oz per quart for standard engines.
  • May not work for all engine types.
  • Requires careful measuring for best results.
  • Initial cost might be higher than standard oils.

Perfect For:

It is great for drivers who want a smooth, quieter ride and fuel savings. It works on gasoline, diesel, transmissions, and any engine, so fleet owners and mechanics can use it.

Ready to Purchase?

6. Motul 8100 X-clean EFE 5W-30 Full Synthetic Motor Oil | Fuel Economy Formula, Helps Protect Emissions Systems, Clean Engine Performance | Long Drain Capable, Improved Engine Responsiveness | 5L

Motul 8100 X-clean EFE 5W-30 Full Synthetic Motor Oil | Fuel Economy Formula, Helps Protect Emissions Systems, Clean Engine Performance | Long Drain Capable, Improved Engine Responsiveness | 5L

Motul 8100 X-clean EFE 5W-30 is a full synthetic motor oil designed for fuel economy and clean engine performance. It helps protect emissions systems and keeps engines running smoothly. This oil is long-drain capable, saving you time and money.

It works well in modern engines with advanced emissions controls and supports high-temperature durability. The formula enhances engine responsiveness and delivers a refined driving experience.

Pros Cons
  • Saves fuel and extends oil life for longer drives.
  • Protects emissions systems in modern engines.
  • Handles high heat and tough conditions with ease.
  • Smooths engine performance for a quieter ride.
  • Higher price tag than regular motor oils.
  • Requires strict maintenance for optimal performance.
  • Not ideal for older engine models.

Perfect For:

This Motul 8100 X-clean EFE 5W-30 is perfect for drivers who want better fuel economy and longer oil changes. It’s great for modern engines with emissions systems, keeping them clean and efficient.

Ready to Purchase?

7. Motul 8100 X-clean EFE 5W-30 Full Synthetic Motor Oil | Fuel Economy Formula, Helps Protect Emissions Systems | Clean Engine Performance | Long Drain Capable, Improved Engine Responsiveness | 1L

Motul 8100 X-clean EFE 5W-30 Full Synthetic Motor Oil | Fuel Economy Formula, Helps Protect Emissions Systems | Clean Engine Performance | Long Drain Capable, Improved Engine Responsiveness | 1L

Motul 8100 X-clean EFE 5W-30 is a full synthetic motor oil designed for clean engine performance. It helps protect emissions systems while improving fuel economy. This oil is long-drain capable, meaning fewer changes over time.

Its Extra Fuel Economy (EFE) formula strikes a perfect balance between efficiency and protection. The synthetic oil offers wear protection and high-temperature resistance, keeping your engine running smoothly.

With a universal fit, this oil works for most vehicles. It also enhances engine responsiveness, giving you a smoother drive. Motul 8100 is a reliable choice for your engine’s needs.

Pros Cons
  • Boosts fuel economy without sacrificing engine protection
  • Keeps emissions systems safe and running clean
  • Delivers crisp engine response every time you hit the gas
  • Lasts longer between oil changes—saves you time and money
  • Fights sludge and deposits for a cleaner, healthier engine
  • Higher price than conventional motor oils
  • Not ideal for older engines with high mileage
  • Limited availability in local auto shops

Perfect For:

If you drive a modern car and want maximum fuel savings without sacrificing engine protection, this oil is built for you.
It’s perfect for drivers who demand clean performance, longer drain intervals, and smoother engine response—especially in vehicles with emissions-sensitive systems.

Ready to Purchase?

8. Mobil 1 0W-30 (Advanced Fuel Economy) Synthetic Motor Oil – 1 Quart (Pack of 6)

Mobil 1 0W-30 (Advanced Fuel Economy) Synthetic Motor Oil - 1 Quart (Pack of 6)

Slip right in—this oil flows like silk when your engine starts cold, cutting friction fast. That means quicker starts, less wear, and real protection from the very first crank. No warm-up required, just instant defense.

Save fuel without sacrificing power. Mobil 1’s advanced formula helps your engine run smoother and more efficiently, squeezing out extra miles per gallon. Keep your ride running strong while spending less at the pump—every trip gets an upgrade.

Follow your manual, get the best results. Trusted by engineers and drivers alike for clean, quiet, and reliable performance. Simple steps, big rewards—protect your engine the smart way.

Pros Cons
  • Improves your engine’s fuel economy.
  • Synthetic oil for optimal performance.
  • Protects your engine in various conditions.
  • Easy to follow manufacturer’s recommendations.
  • Small quantity per quart, needs frequent refill
  • Higher price than conventional oils

Perfect For:

This oil is for car owners who want top engine care and better fuel efficiency. It works well in cars needing synthetic 0W-30 oil for smooth performance.

Ready to Purchase?

9. BestLine Racing – Engine Oil Additive for all Gas & Diesel Engines – Reduces Wear, Noise, Vibration – Boosts Fuel Economy & Horsepower – Made in the USA, Treats 5-quarts of oil.

BestLine Racing - Engine Oil Additive for all Gas & Diesel Engines - Reduces Wear, Noise, Vibration - Boosts Fuel Economy & Horsepower - Made in the USA, Treats 5-quarts of oil.

BestLine Racing Engine Oil Additive boosts engine power. It reduces wear, noise, and vibration. Use it in all gas and diesel engines, from cars to trucks.

This nano formula creates a low-friction film. It resists heat up to 1,800°F and treats 5 quarts of oil. One bottle lasts your next oil change.

Pros Cons
  • Reduces friction and noise by up to 60%.
  • Boosts fuel economy and horsepower for better performance.
  • Works on all engines, including cars and trucks.
  • Restores high mileage vehicles effectively.
  • Made in the USA with quality assurance.
  • May not fix severe engine damage.
  • Requires regular use for best results.
  • Effectiveness can vary by engine type.

Perfect For:

This product is perfect for anyone who wants to keep their engine running smoothly. It works for all gas and diesel engines.

Ready to Purchase?

10. Castrol GTX High Mileage 10W-40 Synthetic Motor Oil, 1 Quart, Pack of 6

Castrol GTX High Mileage 10W-40 Synthetic Motor Oil, 1 Quart, Pack of 6

Castrol GTX High Mileage 10W-40 is made for older engines. Phosphorus Replacement Technology helps protect emission systems. Superior dispersancy fights sludge, and oil burn-off protection meets high standards.

Advanced additives help prevent engine wear. Seal conditioners reduce leaks for smoother performance.

This oil meets API SP/SN PLUS/SN/SM and ILSAC GF-6 specs. Improved fuel economy applies to 5W-20, 5W-30, and 10W-30 grades, not this 10W-40 product.

Pros Cons
  • Phosphorus Replacement extends emission system life
  • Superior dispersancy fights sludge buildup
  • Seal conditioners help cut leaks
  • Advanced additives protect engine wear
  • Improves fuel economy beyond standards
  • Thicker viscosity may not suit newer engines
  • Higher price vs conventional motor oils
  • Not ideal for extreme cold weather use

Perfect For:

This motor oil is perfect for drivers who want to protect their engines and improve fuel economy. It’s great for high-mileage cars and helps reduce leaks while fighting sludge build-up.

Ready to Purchase?

Buying Guide

Save fuel and boost performance with the right oil. Choosing the best oil for fuel economy can make a big difference in your car’s efficiency.

Engaging Experience:
Imagine your engine running smoother, quieter, and more efficiently. The right oil not only saves you money at the pump but also extends your engine’s life. Let’s explore how to pick the perfect one for your ride.

Factors to Consider When Buying:
Viscosity: Choose the right thickness for your engine. Low-viscosity oils like 0W-20 or 0W-16 improve fuel economy by reducing friction.
Synthetic vs. Conventional: Synthetic oils offer better protection and last longer. They’re ideal for high-performance engines and extreme conditions.
Additives: Look for additives that reduce wear, noise, and vibration. Products like Prolube and BestLine Racing can boost power and efficiency.
Engine Compatibility: Check your car’s manual. Some oils are designed for modern engines, while others suit older models.
Standards: Ensure the oil meets ILSAC GF-6 or API standards for optimal protection and performance.
Longevity: Oils with long-drain capabilities save time and money by lasting up to 10,000 miles between changes.
Fuel Economy Claims: Look for oils specifically labeled for fuel economy, like Mobil 1 Advanced Fuel Economy or Motul 8100 X-clean EFE.