10 Best High Mileage Oils for Optimal Engine Performance in 2025
In 2025, choosing the right high mileage oil can make a significant difference for aging engines. With so many options available, it’s important to take into account factors like seal conditioners and wear protection. High mileage oils, like Mobil 1 and Valvoline, feature advanced formulas that cater to vehicles over 75,000 miles. But what specific qualities should drivers look for in these oils? Stick around to explore the top contenders that promise to boost engine performance and longevity.
Key Takeaways
- High mileage oils, like Mobil 1 and Valvoline, are specially formulated for vehicles over 75,000 miles, enhancing engine protection and performance.
- Look for oils with extended change intervals, allowing up to 20,000 miles between changes, reducing maintenance frequency.
- Seal conditioners in these oils help revive aging seals, minimizing leaks and oil consumption in older engines.
- Advanced formulations, including friction-reducing additives and superior detergents, combat sludge buildup and improve fuel economy.
- Ensure compatibility with industry standards, such as ILSAC GF-6, for optimal performance in high mileage vehicles.
Mobil 1 Extended Performance High Mileage Full Synthetic Motor Oil 5W-30 (5 Quart)
- Mobil 1 Extended Performance High Mileage full-synthetic motor oil 5W-30 is designed for engines with over 75,000 miles to go up to 20,000 miles between oil changes.*
- Utilizes Mobil 1’s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of power
- Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
- Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -40 degrees F)
- Helps extend engine life by working to prevent damaging deposits and sludge buildup
Mobil 1 Extended Performance High Mileage Full Synthetic Motor Oil 5W-30 (5 Quart) is an excellent choice for drivers who have vehicles with over 75,000 miles on the odometer. This oil is specially formulated to keep older engines running smoothly, allowing for oil changes up to an impressive 20,000 miles! With its Triple Action+ Formula, it protects against sludge buildup while boosting engine performance. Plus, it handles temperature extremes, from sizzling heat to icy conditions, ensuring your engine stays happy. For those who want prolonging engine health without constant trips to the garage, this oil is a fantastic investment!
Best For: Drivers of high-mileage vehicles (over 75,000 miles) who want to maintain engine performance and extend oil change intervals.
Pros:
- Long oil change intervals of up to 20,000 miles reduce maintenance frequency.
- Advanced formula effectively prevents sludge and deposits, promoting engine cleanliness.
- Exceptional temperature protection handles extreme conditions, ensuring optimal engine performance.
Cons:
- Higher initial cost compared to conventional oils, which may deter budget-conscious consumers.
- Availability may vary by region, making it harder to find in certain areas.
- May not be suitable for all vehicles; it’s specifically designed for high-mileage engines, which could limit its appeal.
Valvoline High Mileage Synthetic Blend Motor Oil 5 QT
- MaxLife Technology prevents engine breakdown with 40% better wear protection than the industry standard
- Includes seal conditioners to reduce oil consumption and oil leaks in high mileage engines.
- Added detergents reduce sludge, corrosion, rust and deposits to help keep motors clean inside and ensure a smooth-running engine.
- Advanced friction-fighting additives help maximize performance and improve fuel efficiency.
- Meets or exceeds all requirements of ILSAC GF-6A, API SP, API SN with SN Plus, API SN
For drivers who are clocking in miles beyond 75,000, Valvoline High Mileage Synthetic Blend Motor Oil 5 QT stands out as a reliable choice. This oil, featuring MaxLife Technology, is crafted specifically for aging engines, providing wear protection that’s 40% better than the industry standard. Its unique seal conditioners work to rejuvenate old seals, helping to reduce pesky leaks and oil consumption. Plus, the added detergents tackle sludge and rust, keeping engines cleaner. Compatible with a wide range of vehicles, this oil guarantees performance and fuel efficiency, making it a top pick for many high-mileage drivers looking to extend their engine life.
Best For: Drivers of vehicles with over 75,000 miles seeking advanced engine protection and improved performance.
Pros:
- MaxLife Technology provides 40% better wear protection than industry standards.
- Seal conditioners help minimize oil consumption and reduce leaks in aging engines.
- Detergents effectively combat sludge and internal deposits, promoting cleaner engine performance.
Cons:
- May be more expensive than standard motor oils.
- Not suitable for vehicles requiring a different viscosity grade.
- Availability may vary by location or retailer.
Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts
- Phosphorus Replacement Technology helps extend emission system life
- Superior dispersancy that fights sludge build up
- Exceptional oil burn-off protection exceeding industry standards* | Seal conditioners to help reduce leaks
- Advanced additives that help prevent engine wear | Improved Fuel Economy**
- Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets Ford WSS-M2C946-B1 | Meets Ford WSS-M2C961-A1 | * Based on API and ACEA volatility specifications | ** In 5W-20, 5W-30 and 10W-30 grades versus industry specifications
When looking for a motor oil that shines for high-mileage vehicles, Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil stands out as an excellent choice. This oil uses Phosphorus Replacement Technology, helping to prolong the life of emission systems. Its superior dispersancy fights off sludge that can clog engines, while advanced additives reduce wear and improve overall performance. It also features seal conditioners to combat leaks, keeping engines healthier for longer. With enhanced fuel economy and compliance with major standards, Castrol GTX proves to be a reliable companion for aging vehicles, giving drivers peace of mind and a smoother ride.
Best For: This motor oil is best for high-mileage vehicles that require enhanced protection and performance.
Pros:
- Phosphorus Replacement Technology extends emission system life.
- Advanced additives help reduce engine wear and improve performance.
- Seal conditioners minimize leaks, enhancing engine longevity.
Cons:
- Potentially higher cost compared to conventional oils.
- May not be necessary for newer vehicles with low mileage.
- Availability might be limited in some regions.
Valvoline High Mileage SAE 5W-30 Synthetic Blend Motor Oil (5 QT)
- Formulated for engines with 75,000 miles or more, Valvoline MaxLife High Mileage synthetic blend is formulated with seal conditioners to help prevent oil leaks and reduce oil consumption
- Delivers 20% better wear protection and 15% better sludge defense than industry standards to help prevent engine breakdown
- Extra detergents safeguard against friction, corrosion and deposits to keep high-mileage engines clean
- Advanced friction-fighting additives help maximize performance and improve fuel efficiency
- Provides performance benefits for high mileage, new and re-built engines alike
Valvoline High Mileage SAE 5W-30 Synthetic Blend Motor Oil stands out as an exceptional choice for drivers with vehicles that have seen better days. This oil boasts MaxLife Technology, providing users with 40% better wear protection than usual, which is like having an additional layer of armor for the engine. It includes seal conditioners, helping to minimize both oil consumption and leaks—no one enjoys puddles under their car! Plus, clever detergents keep the engine clean by fighting off sludge and rust buildup. With its advanced additives, this high mileage oil is designed to improve performance and fuel efficiency, ensuring a smooth ride ahead.
Best For: Drivers of high mileage vehicles looking for enhanced engine protection and reduced oil consumption.
Pros:
- Provides 40% better wear protection than industry standards.
- Contains seal conditioners to minimize oil consumption and reduce leaks.
- Includes detergents that help keep the engine clean from sludge, corrosion, and rust.
Cons:
- May not be necessary for newer vehicles with low mileage.
- Higher cost compared to conventional motor oils.
- Availability may vary by location, limiting access for some consumers.
Mobil 1 High Mileage Full Synthetic Motor Oil 5W-30, 5 Quart
- Mobil 1 High Mileage full-synthetic motor oil 5W-30 is designed for engines with over 75,000 miles to go up to 10,000 miles between oil changes.*
- Utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness
- Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
- Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
- Helps extend engine life by working to prevent damaging deposits and sludge buildup
Engine enthusiasts often find that Mobil 1 High Mileage Full Synthetic Motor Oil 5W-30, 5 Quart is the perfect companion for vehicles with over 75,000 miles on the odometer. This oil is crafted using Mobil 1’s Triple Action Formula, ensuring excellent engine performance and protection. It not only meets the ILSAC GF-6 standards, reducing the risk of low-speed pre-ignition, but it also defends against timing chain wear. With internal heat protection up to 500 degrees Fahrenheit and low-temperature performance as low as -30 degrees, it keeps engines running smoothly. Plus, it helps enhance fuel economy, making every drop count!
Best For: Engine enthusiasts with vehicles that have over 75,000 miles, seeking superior engine performance and protection.
Pros:
- Excellent protection against engine wear and sludge buildup.
- Enhances fuel economy and keeps engines clean.
- Capable of operating under extreme temperature conditions, both high and low.
Cons:
- May be more expensive than conventional motor oils.
- Some users may prefer non-synthetic options due to personal preference.
- Requires specific knowledge for proper maintenance and oil change intervals.
Valvoline Full Synthetic High Mileage Motor Oil 5W-30 (5 Quart)
- Designed for vehicles with 75,000 miles or more, Valvoline MaxLife Full Synthetic High Mileage Motor Oil helps maximize engine life and performance for the many miles still ahead
- Formulated with seal conditioners to help prevent oil leaks, reduce oil consumption, and improve fuel economy
- Delivers 50% stronger wear protection than industry standards for superior defense against friction and wear
- Provides 20% stronger sludge defense than industry standards to protect against harmful buildup and deposits
- Offers 2.5X better heat protection than industry standards to safeguard engines in extreme conditions
For car owners with vehicles boasting over 75,000 miles, finding the right motor oil can feel like searching for a needle in a haystack. Valvoline Full Synthetic High Mileage Motor Oil 5W-30 stands out with its MaxLife Technology, designed specifically for aging engines. This advanced formula includes seal conditioners that work wonders, helping to prevent and repair pesky oil leaks. With 50% better wear protection than the standard, it promises to keep engines running smoothly. Plus, it offers extra defense against deposits and rust, ensuring that engines stay happy for longer. After all, who doesn’t want a reliable ride?
Best For: Owners of high mileage vehicles (over 75,000 miles) seeking reliable motor oil to enhance engine performance.
Pros:
- 50% better wear protection than industry standard, extending engine life.
- Includes seal conditioners to help prevent and repair oil leaks.
- Enhanced defense against deposits, sludge, corrosion, and rust.
Cons:
- May be pricier than conventional oils.
- Not suitable for vehicles with less than 75,000 miles.
- Requires proper disposal and handling due to synthetic composition.
Mobil 1 High Mileage Full Synthetic Motor Oil 0W-20, 5 Quart
- Mobil 1 High Mileage full-synthetic motor oil 0W-20 is designed for engines with over 75,000 miles to go up to 10,000 miles between oil changes.*
- Utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness
- Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
- Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
- Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
When it comes to keeping high-mileage vehicles running smoothly, Mobil 1 High Mileage Full Synthetic Motor Oil 0W-20 stands out as an exceptional choice. Specially formulated for engines with over 75,000 miles, this oil not only extends engine life but also allows drivers to go up to 10,000 miles between oil changes—making it a time saver. It features Mobil 1’s Triple Action Formula that reduces friction and protects against sludge buildup. With excellent temperature protection and a stellar 4.9-star customer rating, it’s no wonder it’s trusted by mechanics and car builders alike. Your engine will appreciate this premium oil!
Best For: Individuals with high-mileage vehicles (over 75,000 miles) looking to extend engine life and reduce maintenance frequency.
Pros:
- Provides extended oil change intervals of up to 10,000 miles, saving time and money on maintenance.
- Utilizes advanced technology to reduce friction, prevent sludge buildup, and offer excellent engine protection.
- Highly rated by users (4.9 out of 5 stars) and trusted by high-performance car builders and mechanics.
Cons:
- May not be suitable for vehicles with lower mileage, as it is specifically designed for high-mileage engines.
- Higher price point compared to conventional motor oils, which might deter budget-conscious consumers.
- Availability may vary by region, potentially making it harder to find in some locations.
Castrol EDGE High Mileage 5W-30 Advanced Full Synthetic Motor Oil, 5 Quarts
- Phosphorus Replacement Technology to help extend the life of the emission system
- Reduces leaks, oil burnoff and power robbing deposits
- 15,000 miles between oil changes*
- Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets engine test requirements of Chrysler MS 6395 | Meets Ford WSS-M2C946-B1 | Meets Ford WSS-M2C961-A3
- Or one year, whichever comes first
With a horsepower boost in mind, Castrol EDGE High Mileage 5W-30 Advanced Full Synthetic Motor Oil stands out as an exceptional choice for drivers with vehicles that have crossed the 75,000-mile mark. This innovative oil not only promises maximum performance and protection but also features Phosphorus Replacement Technology to extend the life of the emission system. It’s designed to tackle pesky oil leaks and minimizes deposits that can steal precious horsepower. Recommended for oil changes every 15,000 miles or yearly, this 5-quart jug is a top seller with a stellar 4.8-star rating, making it a worthy companion for aging engines.
Best For: Drivers with high mileage vehicles (over 75,000 miles) seeking enhanced engine performance and protection.
Pros:
- Provides maximum performance and protection for aging engines.
- Features Phosphorus Replacement Technology to extend emission system life.
- Reduces oil leaks, burnoff, and harmful deposits, maintaining horsepower.
Cons:
- Recommended oil change interval may be longer compared to some conventional oils.
- Slightly higher price point compared to regular motor oils.
- Not suitable for vehicles requiring a different oil grade.
Mobil 1 High Mileage Full Synthetic Motor Oil 5W-20, 5 Quart
- Mobil 1 High Mileage full-synthetic motor oil 5W-20 is designed for engines with over 75,000 miles to go up to 10,000 miles between oil changes.*
- Utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness
- Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
- Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
- Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
Mobil 1 High Mileage Full Synthetic Motor Oil 5W-20 is a fantastic choice for drivers whose vehicles have clocked over 75,000 miles. This oil boasts a remarkable Triple Action Formula that offers fantastic engine performance, protection, and cleanliness. It helps remove sludge while also safeguarding against low-speed pre-ignition and wear on timing chains, which is essential for older engines. With a temperature range from -30 degrees F to 500 degrees F, it adapts to various driving conditions. Plus, it promotes better fuel economy, making each drop count. For a smoother ride and a happier engine, Mobil 1 is hard to beat!
Best For: Drivers of vehicles with over 75,000 miles seeking an oil that delivers enhanced performance and protection.
Pros:
- Outstanding engine performance and cleanliness through its Triple Action Formula.
- Effective protection against low-speed pre-ignition and timing chain wear.
- Wide temperature adaptability, providing excellent protection from -30 degrees F to 500 degrees F.
Cons:
- Higher price point compared to conventional oils.
- Not suitable for vehicles with less than 75,000 miles.
- Requires periodic oil changes every 10,000 miles, depending on driving conditions.
Castrol Edge High Mileage 0W-20 Advanced Full Synthetic Motor Oil, 5 Quart
- Phosphorus Replacement Technology to help extend the life of the emission system
- Reduces leaks, oil burnoff and power robbing deposits
- 15,000 miles between oil changes*
- Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets engine test requirements of Chrysler MS 6395 | Meets Ford WSS-M2C947-B1 | Meets Ford WSS-M2C962-A2
- Or one year, whichever comes first
For drivers of vehicles that have seen over 75,000 miles, Castrol Edge High Mileage 0W-20 Advanced Full Synthetic Motor Oil stands out as a top choice for ensuring long-lasting engine health. This advanced oil is formulated to reduce leaks and oil burnoff, protecting engines from those pesky power-robbing deposits. With a viscosity of 0W-20, it delivers excellent performance, meeting various industry standards. Boasting a remarkable average rating of 4.8 stars from over 1,000 users, it’s a clear favorite. Its recommended 15,000-mile change interval means less frequent oil changes—what a win for busy drivers!
Best For: Drivers of vehicles with over 75,000 miles looking to maintain engine performance and longevity.
Pros:
- Reduces leaks and oil burnoff, enhancing engine protection.
- Meets industry standards, ensuring compatibility with various vehicles.
- Extended oil change interval of 15,000 miles minimizes maintenance frequency.
Cons:
- Higher upfront cost compared to conventional motor oils.
- Availability may vary depending on location and retailer.
- May not be suitable for vehicles with specific manufacturer oil requirements.
Factors to Consider When Choosing High Mileage Oil
Choosing the right high mileage oil can feel a bit like searching for a needle in a haystack, but focusing on key factors makes it easier. Understanding viscosity ratings, engine protection technologies, and how oil changes affect your vehicle can help guarantee peak performance. Plus, considering fuel economy and compatibility with your ride will make selecting the perfect oil an exciting task rather than a chore.
Viscosity Ratings Importance
When it comes to keeping an engine running smoothly, viscosity ratings can feel a bit like the unsung heroes of motor oil selection. These ratings, indicating the oil’s thickness and flow, are vital for proper engine lubrication, especially in high-mileage vehicles. A higher viscosity number, like 5W-30, provides better protection under heat stress, ensuring your engine stays happy in tough conditions. The first number in that rating tells you how well the oil flows in cold weather, which is important during chilly starts. Using the right viscosity can reduce engine wear, lower oil consumption, and even boost fuel efficiency. Always remember to stick to the manufacturer’s recommendations; it’s like following a recipe for your car’s success!
Engine Protection Technologies
Selecting the right high mileage oil is essential, especially as engines age and face more wear and tear. High mileage oils come packed with advanced engine protection technologies that truly make a difference. For instance, many of these oils include seal conditioners that revive aging seals, cutting down on those pesky leaks. Additionally, special additives work tirelessly to fight sludge, rust, and internal deposits, keeping the engine clean.
What’s more, these oils often provide wear protection that exceeds industry standards by over 40%! That’s like having an extra shield of armor for your engine. They can also withstand extreme temperatures, offering protection from hot days to chilly nights. With these amazing features, high mileage oils help engines run smoother and last longer!
Oil Change Intervals
As engines age and rack up those miles, oil change intervals become a key conversation—especially for vehicles with over 75,000 miles. High mileage oils can stretch those intervals considerably. Many products allow for changes every 10,000 to 20,000 miles, thanks to their special formulations designed to keep engines running smoothly. These oils help combat engine wear, sludge buildup, and even oil consumption, which means your engine can thrive longer between changes. Plus, they often meet high industry standards like ILSAC GF-6, ensuring great performance. For those looking to keep their vehicles healthy, picking the right high mileage oil can mean fewer trips to the mechanic—saving time, money, and perhaps a few road trip adventures!
Fuel Economy Enhancement
Choosing the right high mileage oil can feel a bit like picking the perfect pair of shoes for a long hike. Not only does high mileage oil help your engine run smoother, but it also plays an essential role in boosting fuel economy. Special formulations in these oils reduce friction, meaning less energy wasted, which is a win for both the engine and your wallet. With friction-fighting additives and advanced cleaning agents, these oils minimize wear and tear, keeping your engine tidy and efficient. Plus, they can endure heat better, helping engines maintain a steady temperature. This leads to even less energy loss. By selecting the appropriate high mileage oil, drivers can experience improved fuel efficiency and a happier vehicle overall.
Compatibility With Vehicles
When it comes to high mileage oils, understanding how well a particular oil will work with a vehicle can make a significant difference in performance and longevity. For vehicles with over 75,000 miles, compatibility is essential. Drivers should consider the type of vehicle—be it a car, SUV, or truck—when selecting oil. Many high mileage oils meet notable industry standards like ILSAC GF-6 and API SP, which makes them suitable for a variety of makes and models. Additionally, pay attention to the viscosity grade, with options like 5W-30 and 0W-20, as it can affect engine performance. By choosing the right high mileage oil, drivers can keep their engines running smoothly for many more miles ahead!
Seal Conditioners Usage
High mileage oil isn’t just about maintaining viscosity; it’s also about keeping those stubborn seals in good shape. Seal conditioners are special additives designed to revive aging seals in high-mileage engines. They work by softening hardened seals, making them more flexible and effective at preventing oil leaks. For vehicles with over 75,000 miles, these conditioners can be a game changer. Surprisingly, high mileage motor oils containing seal conditioners can offer up to 40% better wear protection compared to regular oils. Plus, they help keep the engine cleaner by reducing sludge and deposits that can form as seals wear down. So, if you want to give your engine a fighting chance against leaks, consider oils with seal conditioners. They might just save the day!
Additives and Detergents
While picking out the best high mileage oil, one important thing to contemplate is the role of additives and detergents. These superheroes in the oil world help keep older engines running smoothly. Additives, like seal conditioners, rejuvenate aging seals, reducing leaks and oil consumption—talk about a win-win! Detergents keep the engine clean by fighting off sludge and rust, which can save you from costly repairs. Plus, advanced friction-fighting additives improve lubrication, enhancing fuel economy and reducing engine wear. Some oils even feature phosphorus replacement technology, extending the life of emission systems. With superior dispersancy, they manage sludge buildup, ensuring your oil stays effective even during those long intervals between oil changes. Your engine will thank you!
Performance Standards Compliance
Choosing the right high mileage oil can feel like managing a maze, yet understanding performance standards compliance is crucial for any vehicle owner. When selecting oil, look for compliance with performance standards like ILSAC GF-6, API SP, and API SN. These markers signal quality and fit for older engines, helping protect against low-speed pre-ignition and timing chain wear. It’s important to choose oils that reduce sludge and deposits, keeping engines clean and functional. Some oils even exceed industry standards, featuring advanced technologies like seal conditioners to help rejuvenate aging seals. Enhanced wear protection—sometimes improving by over 40%—can also play a significant role in extending the lifespan of a high mileage vehicle. Embrace the maze, and your engine will thank you!
Frequently Asked Questions
What Is Considered High Mileage for Engine Oil Purposes?
High mileage for engine oil purposes is typically defined as vehicles that have accrued 75,000 miles or more. At this stage, engines may experience wear, making specialized oils advantageous for maintaining performance and longevity.
How Often Should I Change High Mileage Oil?
One might ponder the essence of maintenance; typically, high mileage oil should be changed every 5,000 to 7,500 miles, depending on driving conditions. Regular changes can preserve engine longevity and enhance performance over time.
Can I Mix High Mileage Oil With Regular Motor Oil?
Mixing high mileage oil with regular motor oil is generally not recommended. Doing so may reduce the benefits high mileage oil provides, potentially undermining its effectiveness in protecting older engines and addressing wear issues.
Does High Mileage Oil Improve Fuel Efficiency?
At the end of the day, high mileage oil can potentially improve fuel efficiency by reducing friction and optimizing engine performance. This results in smoother operation, allowing vehicles to run more economically over time.
What Are the Signs My Engine Needs High Mileage Oil?
Visible oil leaks, excessive engine noise, increased oil consumption, and a decrease in overall performance indicate that an engine may require high mileage oil. These signs often signal wear and tear on older engine components.
Conclusion
Choosing the right high mileage oil is like finding the perfect pair of shoes—comfort and fit are key! With options like Mobil 1 and Valvoline, your engine can run smoother and longer, just like those favorite sneakers that never tire. Remember to reflect on your vehicle’s needs and your driving habits for the best performance. Investing in quality oil not only prolongs your engine’s life but also keeps it happy on the road. Happy driving!
Last update on 2026-04-17 / Affiliate links / Images from Amazon Product Advertising API