5 Best Oils for Harley Davidson Motorcycles – Keep Your Ride Running Smoothly

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Mr. Chase Manhattan

If you want your Harley Davidson motorcycle to perform at its best, choosing the right oil is essential. From enhancing engine protection to ensuring consistent oil flow, selecting the best oil can make all the difference in your ride's performance. Whether you're aiming for reduced noise, improved engine maintenance, or increased longevity, the right oil can be a game-changer. So, before you hit the road, make sure you've got the most suitable oil to keep your Harley running smoothly and efficiently.

Things to Note

  • Choose oils with correct viscosity like 20W-50 for optimal engine performance.
  • Prioritize oils specifically formulated for Harley Davidson motorcycles.
  • Look for high-grade oils with additives for enhanced engine protection.
  • Opt for oils with heat-resistant properties to protect critical components.
  • Regular oil changes with recommended oils prevent costly repairs and maintain engine health.

Castrol Power1 V-Twin 20W-50 Full Synthetic Motorcycle Oil (Pack of 6)

full synthetic v twin oil

For Harley Davidson motorcycle owners who prioritize superior engine protection and performance, the Castrol Power1 V-Twin 20W-50 Full Synthetic Motorcycle Oil (Pack of 6) is the perfect choice.

This full synthetic 4-stroke motorcycle oil is specifically designed for modern V-twin engines, offering exceptional protection for the engine, clutch, and gearbox. With Trizone technology ensuring extensive safeguarding, this oil goes beyond industry standards by exceeding API SL and JASO MA-2 requirements.

Riders can expect maximum engine acceleration due to race-derived technology, leading to improved overall performance. Additionally, the oil is shear stable, preventing viscosity breakdown and maintaining engine efficiency.

Users have praised its clean-burning properties, anti-wear capabilities, and anti-corrosion features, making it a top choice for Harley Davidson enthusiasts seeking top-notch engine care.

Best For: Harley Davidson motorcycle owners looking for superior engine protection and performance.


  • Specifically designed for modern V-twin engines
  • Exceeds API SL and JASO MA-2 standards for extensive protection
  • Race-derived technology for maximum engine acceleration


  • May be pricier compared to conventional oils
  • Packaging of multiple bottles may be bulky for some users
  • Not suitable for all types of motorcycles or engines

Red Line 90226 Powersport Motor Oil V-Twin 20W50 Powerpack Kit

motor oil powerpack kit

Ideal for Harley Davidson motorcycle owners seeking an all-inclusive oil change solution, the Red Line 90226 Powersport Motor Oil V-Twin 20W50 Powerpack Kit offers a complete package for engine maintenance.

This kit includes 5 quarts of 20W50 Motorcycle Oil, 1 quart of V-Twin Transmission Oil with ShockProof, 1 quart of Primary Chain Case Oil, and a bottle of Fuel Injection Cleaner for Powersports.

The kit is compatible with motorcycles equipped with Evolution, Milwaukee-Eight, and Twin-Cam engines, providing enough fluids for a complete oil change.

Users have reported smoother shifting, improved engine performance, and enhanced engine noise, gear changes, and clutch performance after using this kit.

With positive feedback on quality and performance, the Red Line 90226 Powerpack Kit is a popular choice among Harley motorcycle owners.

Best For: Harley Davidson motorcycle owners looking for a comprehensive oil change solution with proven performance benefits.


  • Complete package for engine maintenance with high-quality oils and additives.
  • Compatible with Evolution, Milwaukee-Eight, and Twin-Cam engines for versatile use.
  • Positive user feedback on smoother shifting, improved engine performance, and reduced mechanical noise.


  • Additional quart of primary fluid recommended for Twin Cam models due to engine capacity.
  • Users must ensure to check vehicle specifications to avoid overfilling.
  • Some may find the kit slightly expensive compared to individual oil purchases.

Lucas Oil High Performance Synthetic Motorcycle Oil – 20W-50, 1 Quart (Pack of 6)

high performance synthetic motorcycle oil

Best suited for riders seeking exceptional engine performance in their Harley Davidson motorcycles, the Lucas Oil High Performance Synthetic Motorcycle Oil in 20W-50 viscosity, available in a pack of 6 quarts, delivers impressive results even under high temperatures.

Users have reported that it outperforms Harley's Syn3, especially when the engine is hot, maintaining oil pressure at any RPM. This oil has garnered positive feedback for its versatility, being used in the engine, transmission, and primary on various motorcycles without any issues during regular maintenance intervals.

The positive user reviews also highlight its effectiveness in reducing engine oil temperature by up to 15°F. Described as a top-tier oil and a good deal, Lucas Oil High Performance Synthetic Motorcycle Oil continues to impress riders with its quality and performance across different motorcycle models.

Best For: Riders seeking exceptional engine performance in their Harley Davidson motorcycles, especially in high-temperature conditions.


  • Outperforms Harley's Syn3, maintaining oil pressure at any RPM.
  • Versatile usage in engine, transmission, and primary on various motorcycles.
  • Effective in reducing engine oil temperature by up to 15°F.


  • May be on the higher end in terms of pricing compared to some competitors.
  • Some users may prefer a different viscosity for specific riding conditions.
  • Packaging in quarts may not be convenient for all users.

Quicksilver 20W-50 Synthetic Motorcycle Oil – 1 Qt.

high performance motorcycle oil

Designed specifically for Harley Davidson motorcycles, Quicksilver 20W-50 Synthetic Motorcycle Oil – 1 Qt. provides consistent oil flow across a wide temperature range, ensuring best engine performance.

This oil is formulated to protect against corrosion during storage and is tailored for air-cooled engines that operate in extreme heat conditions, making it a reliable choice for Harley Davidson applications.

Meeting or exceeding Harley Davidson warranty requirements, this product is manufactured by Quicksilver, a reputable brand known for quality.

With a weight of 2.07 pounds and dimensions of 9.21 x 4.21 x 2.28 inches, this 1-quart bottle is made in the USA.

Customers have rated this oil highly for its performance, making it a popular choice among riders looking for superior engine protection.

Best For: Harley Davidson motorcycle owners looking for a high-quality synthetic oil that meets or exceeds warranty requirements.


  • Consistent oil flow across a wide temperature range
  • Protection against corrosion during storage
  • Specifically designed for air-cooled engines in extreme heat conditions


  • Some reported issues with delivery accuracy
  • Comparatively higher pricing for a synthetic oil
  • Limited availability in certain regions

MaximaHiflofiltro VTTOCK21 Complete Engine Oil Change Kit for V-Twin Harley Davidson Twin Cam

oil change kit for harley

The MaximaHiflofiltro VTTOCK21 Complete Engine Oil Change Kit for V-Twin Harley Davidson Twin Cam offers Harley Davidson riders a thorough solution for maintaining their motorcycles' performance and longevity. Specifically designed for all Twin Cam Motorcycles from 2000 to 2015, this kit includes 4 Quarts of Maxima V-Twin Synthetic Blend 20w50 Engine Oil, 1 Quart of Maxima V-Twin Primary Oil, 1 Quart of Maxima V-Twin 85w140 Transmission Oil, and a Black HiFloFiltro HF171B Premium Oil Filter.

The kit's high-temperature formula protects critical engine components, reduces wear, friction, temperature, and oil consumption. With positive customer reviews highlighting smoother clutch operation, reduced gear noise, and improved shifting, the MaximaHiflofiltro VTTOCK21 Complete Engine Oil Change Kit is a popular choice among Harley Davidson enthusiasts.

Best For: Harley Davidson riders looking for a comprehensive oil change kit designed specifically for Twin Cam Motorcycles from 2000 to 2015.


  • Includes high-quality synthetic blend engine oil, primary oil, transmission oil, and premium oil filter for complete maintenance.
  • Special high-temperature formula protects critical engine components and improves performance.
  • Positive user feedback indicates smoother clutch operation, reduced gear noise, and improved shifting.


  • Some users reported missing O rings in the kit.
  • Suggestions for improvement include adding replacement seals on drain plugs and a bottle of fuel system cleaner.
  • May not be suitable for motorcycles outside the specified model range (2000-2015).

Factors to Consider When Choosing Oil for Harley Davidson

When selecting oil for your Harley Davidson, it's important to take into account factors like:

  • oil viscosity,
  • compatibility with your bike's engine, and
  • potential performance enhancements.

Ensuring your oil provides adequate engine protection features and fits within your maintenance budget are also key aspects. By weighing these factors, you can make an informed choice that keeps your Harley running smoothly.

Oil Viscosity Importance

Considering oil thickness is vital when choosing the right oil for your Harley Davidson motorcycle, as it directly impacts lubrication effectiveness and engine performance.

The thickness of the oil determines its ability to flow and coat engine components properly, ensuring they're protected from wear and friction.

Opting for the correct viscosity grade, like 20W-50, is essential as it guarantees excellent performance across the temperature ranges typically experienced by Harley Davidson engines.

The thickness and flow characteristics of the oil, indicated by its viscosity grade, play a significant role in how well it safeguards engine parts during operation.

To maintain your Harley Davidson's engine health, longevity, and overall performance, it's crucial to select the appropriate oil viscosity that aligns with the manufacturer's recommendations.

Harley Davidson Compatibility

To ensure peak performance and safeguard your Harley Davidson motorcycle, it's vital to evaluate key factors when selecting the appropriate oil.

First and foremost, make sure the oil is specifically formulated for use in Harley Davidson motorcycles to meet the manufacturer's requirements. Seek out oils compatible with Harley's air-cooled engines to guarantee peak performance and protection.

It's essential to evaluate oils that meet or surpass Harley Davidson's warranty requirements to uphold the validity of your warranty. Examine the viscosity and technical specifications of the oil to confirm it suits your Harley Davidson model and engine type.

Choose oils recommended for use in V-twin engines, which are common in Harley Davidson motorcycles, for top-notch performance and protection. By carefully assessing these factors, you can choose the right oil that will keep your Harley Davidson running smoothly and efficiently for years to come.

Performance Enhancements

Improve your Harley Davidson motorcycle's performance by selecting high-grade oils designed to reduce friction, wear, and heat buildup in the engine. By opting for specialized oils tailored for Harley Davidson bikes, you can enhance clutch operation, gear shifting, and overall engine response. These performance-boosting oils often contain additives that contribute to better fuel efficiency, cleaner engine operation, and smoother acceleration.

When selecting the right oil viscosity, consider how it can optimize engine performance in various temperature and riding conditions. Premium motorcycle oils play an essential role in maintaining engine health, extending engine life, and maximizing power delivery on your Harley Davidson.

Investing in quality oils for your motorcycle not only improves performance but also guarantees a smoother and more enjoyable riding experience. Make the most of your Harley Davidson's capabilities by choosing oils that are specifically formulated to boost performance and keep your ride running smoothly.

Engine Protection Features

For best engine protection when choosing oil for your Harley Davidson, prioritize advanced additives like anti-wear and anti-corrosion properties. These additives are essential in safeguarding your engine against wear and corrosion, ensuring its longevity and peak performance.

Additionally, look for oils with special high-temperature formulas designed to protect critical engine components by reducing wear, friction, and oil consumption. Viscosity stability is also crucial for V-Twin engines, so choose oils with this feature to maintain consistent lubrication.

Moreover, select oils with extra anti-scuff additives to handle extreme loads and peak temperatures effectively. The inclusion of ultra-clean detergents in the oil is important for protecting gears from wear and deposits, ensuring trouble-free operation, especially in high-performance gear boxes.

When choosing oil for your Harley Davidson, prioritize superior quality and longevity, selecting oils made with high-quality materials that offer extended service life compared to OE and competitor brands.

Maintenance Cost Considerations

Consider key factors when selecting oil for your Harley Davidson to manage maintenance costs effectively. Keeping up with regular oil changes is essential to prevent expensive repairs and engine damage down the line.

Opting for a high-quality oil can't only enhance performance but also extend the lifespan of your motorcycle, potentially reducing long-term maintenance expenses.

Ensuring that you use the recommended oil viscosity and type for your Harley Davidson can further optimize engine function and fuel efficiency, helping you save on fuel costs in the process.

While synthetic oils may have a higher upfront cost, they tend to last longer and provide superior protection compared to conventional oils, potentially lowering maintenance expenses over time.

Additionally, investing in premium oil filters alongside the right oil can promote engine longevity and reduce the frequency of maintenance needs, ultimately cutting down on repair costs.

Heat Resistance Factors

High temperature tolerance is an important factor to prioritize when selecting the appropriate oil for your Harley Davidson motorcycle, given the substantial heat produced by its air-cooled engine.

Oils with special additives play a vital role in protecting critical engine components from heat-related wear and friction. Synthetic oils, renowned for their viscosity stability even under extreme temperatures, are a wise choice for Harley Davidson bikes.

Opting for oils specifically formulated for high-temperature applications can greatly extend your engine's lifespan and enhance overall performance. By investing in heat-resistant oils, you can effectively reduce oil consumption and ensure your engine operates at its best, particularly in hot weather conditions or during long rides.

Prioritizing heat resistance when choosing oil for your Harley Davidson motorcycle is crucial to maintaining a smooth and efficient riding experience while safeguarding your engine against the harmful effects of excessive heat.

Frequently Asked Questions

Can I Mix Different Brands of Motorcycle Oil?

Yes, you can mix different brands of motorcycle oil, but it's generally not recommended. Mixing oils can alter their properties and potentially cause issues with your engine.

It's best to stick with one brand and type of oil for consistency and peak performance. If you do need to mix oils due to circumstances, make sure they're compatible and follow the manufacturer's guidelines to avoid any problems down the road.

How Often Should I Change My Oil in a Harley Davidson?

How often should you change your oil in a Harley Davidson?

Regular oil changes are important for maintaining your Harley's performance and longevity. Harley recommends changing the oil every 3,000 miles, but some riders opt for every 5,000 miles depending on usage.

To keep your ride running smoothly, sticking to a consistent oil change schedule is key.

Is Synthetic Oil Better for Harley Davidson Motorcycles?

Yes, synthetic oil is generally better for Harley Davidson motorcycles. It offers improved performance and protection compared to conventional oils.

Synthetic oil has better resistance to breakdown under high temperatures and provides superior lubrication, which can help prolong the life of your engine.

When it comes to the overall health and longevity of your Harley, synthetic oil is often the preferred choice for many riders.

Can I Use Car Oil in My Harley Davidson?

Thinking of using car oil in your Harley Davidson? Not recommended. Harley Davidson motorcycles have specific oil requirements to keep them running smoothly.

Using car oil may not provide the necessary protection and performance for your bike's engine. Stick to oils designed for motorcycles, like synthetic or semi-synthetic blends, to guarantee peak performance and longevity for your Harley Davidson.

Your bike deserves the best care to keep roaring down the road.

What Are the Signs of Low Oil in a Harley Davidson?

If you're wondering about the signs of low oil in your Harley Davidson, watch out for:

  • Decreased engine performance
  • Strange engine noises
  • Oil leaks

Low oil levels can lead to overheating and serious engine damage. Regularly check your oil levels and quality to keep your ride running smoothly.

Don't ignore these warning signs; it's essential to maintain proper oil levels for peak performance and longevity of your Harley Davidson.


Just like a well-oiled machine, choosing the right oil for your Harley Davidson motorcycle is essential to keeping it running smoothly.

Consider the top oils recommended for best performance and engine protection, such as the Castrol Power1 V-Twin and Red Line Powersport Motor Oil.

With the right oil, your ride will purr like a contented cat on a sunny afternoon, ready to take on the open road with ease and grace.

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Hey y’all! It’s Chase Manhattan, a life-long gearhead, tinkerer, and adrenaline junky. I like to write about all things technical in the Harley Davidson and motorcycling space.