If you own a Harley Davidson Street Glide, you know how important it is to keep it in top condition. One of the most critical components of your bike is the primary system, which requires regular maintenance to keep it running smoothly. One crucial aspect of this maintenance is ensuring that your primary oil is in good condition and changed at the appropriate intervals. In this article, we’ll cover everything you need to know about primary oil for your Street Glide, including how to change it, what tools and equipment you’ll need, and which brands are best for your bike.
Understanding primary oil is essential to maintaining your bike’s performance and longevity. Primary oil is responsible for lubricating the primary system’s components, including the clutch, primary chain, and sprockets. Over time, this oil can become contaminated with debris and metal shavings, reducing its effectiveness and potentially causing damage to your bike. Regularly checking and changing your primary oil is crucial to ensure your bike runs smoothly and avoids costly repairs.
The primary oil change process can seem daunting, but with the right tools and equipment, it’s a straightforward task that you can do at home. In the next section, we’ll cover the steps you need to take to change your primary oil and the tools and equipment you’ll need to do it.
Key Takeaways
- Regularly checking and changing your primary oil is essential for maintaining your bike’s performance and longevity.
- Changing your primary oil is a straightforward task that you can do at home with the right tools and equipment.
- Using high-quality primary oil brands can help optimize your bike’s performance and prevent costly repairs.
Understanding Primary Oil
Primary Oil Basics
If you own a Street Glide, you probably already know that primary oil is an essential component of your motorcycle’s engine. Primary oil is used to lubricate the primary chain, clutch, and transmission. It is vital to keep your primary oil levels in check to ensure your bike’s optimal performance.
Primary oil is different from motor oil because it is designed to withstand higher temperatures and pressures. It is also thicker than motor oil to provide better lubrication for the primary components.
Types of Primary Oil
When it comes to choosing the right primary oil for your Street Glide, there are a few things to consider. The most important factor is viscosity. Viscosity is a measure of how thick or thin the oil is. A higher viscosity oil will be thicker, while a lower viscosity oil will be thinner.
Harley-Davidson recommends using 75W-140 synthetic oil for the primary, but you can also use 20W50 synthetic oil or engine oil. Synthetic oil is a popular choice because it provides better protection and lasts longer than conventional motor oil.
Some riders prefer to use thicker oil in their primary to reduce clutch slippage, while others prefer thinner oil for smoother shifting. It’s essential to choose the right oil for your riding style and the conditions you ride in.
You can also add additives to your primary oil to improve performance and reduce wear. Some additives can help reduce friction, while others can help keep your clutch clean and prevent slippage.
In conclusion, understanding primary oil is crucial for maintaining your Street Glide’s optimal performance. Choose the right oil based on your riding style and the conditions you ride in, and don’t forget to check your oil levels regularly.
Primary Oil Change Process
Changing the primary oil on your Street Glide is a routine maintenance task that you can easily do yourself with basic tools. Here’s a step-by-step guide on how to change the primary oil on your Street Glide.
Preparing for Oil Change
Before you start changing the primary oil, you need to gather the necessary tools and supplies. You will need a drain pan, a funnel, a new primary cover gasket, a socket wrench, and a drain plug socket. You should also check your owner’s manual or service manual to determine the correct oil capacity for your Street Glide.
Draining the Old Oil
To drain the old oil, first, remove the drain plug from the primary cover using a socket wrench and drain plug socket. Make sure you have the drain pan underneath to catch the old oil. Once the old oil has drained out, inspect the drain plug and replace the o-ring if necessary. Then, reinstall the drain plug.
Replacing Primary Cover Gasket
After draining the old oil, it’s time to replace the primary cover gasket. Remove the bolts that hold the primary cover in place, and carefully remove the cover. Clean the mating surfaces of the cover and the engine case. Install the new primary cover gasket and reinstall the primary cover. Tighten the bolts to the manufacturer’s specifications.
Now, you’re ready to refill the primary with fresh oil. Use a funnel to pour the oil into the primary through the inspection cover. Once you’ve added the correct amount of oil, replace the inspection cover and tighten the screws to the manufacturer’s specifications.
In conclusion, changing the primary oil on your Street Glide is a straightforward process that you can do yourself with basic tools. By following these simple steps, you can ensure that your primary is properly lubricated and functioning at its best.
Tools and Equipment
Before changing the primary oil on your Harley-Davidson Street Glide, you will need to gather the necessary tools and equipment. Here are the essential tools you will need:
Essential Tools
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T27 Torque Bit: This tool will be used to remove the bolts that hold the primary cover in place. Make sure you have the correct size for your model of Street Glide.
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Socket Wrench: You will need a socket wrench to remove the bolts that hold the primary cover in place. Make sure you have the correct size socket for your T27 Torque Bit.
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Drain Container: You will need a container to catch the old primary oil as it drains out of the bike.
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Owner’s Manual: Your owner’s manual will have specific instructions for your model of Street Glide. Make sure to refer to it as needed.
Additional Helpful Tools
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Torque Wrench: While not essential, a torque wrench can be helpful to ensure that you tighten the bolts to the correct torque specifications.
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Funnel: A funnel can be helpful to pour the new primary oil into the bike without spilling.
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Rags: Have some rags on hand to clean up any spills or messes that occur during the oil change.
Make sure to have all of these tools and equipment on hand before starting the oil change. This will help ensure a smooth and successful process.
Primary System Components
The primary system of your Street Glide consists of several components that work together to transfer power from the engine to the transmission. Understanding these components is crucial to maintaining your bike’s performance and longevity.
Primary Cover and Chain
The primary cover is the outermost component of the primary system. It encloses the primary chain, clutch plates, and other internal components. The primary chain is responsible for transferring power from the engine to the transmission. It is important to keep the chain properly lubricated to prevent wear and tear. Using high-quality primary oil can help reduce friction and extend the life of the chain.
Clutch and Transmission
The clutch and transmission are two of the most important components of the primary system. The clutch plate is responsible for engaging and disengaging the power from the engine to the transmission. It is important to ensure that the clutch plates are compatible with your bike’s engine and transmission. The transmission consists of gears and bearings that work together to transfer power from the engine to the wheels. Keeping the transmission properly lubricated with high-quality primary oil is essential to maintain its performance.
In conclusion, understanding the primary system components is crucial to maintaining your Street Glide’s performance and longevity. Keeping the primary chain and transmission properly lubricated with high-quality primary oil can help reduce friction and extend the life of your bike’s components. Make sure to use compatible clutch plates to ensure proper engagement and disengagement of power from the engine to the transmission.
Maintenance and Longevity
When it comes to maintaining your Street Glide’s primary oil, it’s essential to follow the manufacturer’s recommended maintenance schedule. Regular maintenance helps ensure that your motorcycle’s internal components are properly lubricated and protected from damage.
Regular Maintenance
The primary oil in your Street Glide should be changed every 5,000 miles or as recommended by the manufacturer. Regular oil changes help to prevent wear and tear on internal components and keep your motorcycle running smoothly.
When changing the primary oil, it’s important to use the correct type of oil recommended by the manufacturer. Using the wrong type of oil can cause damage to your motorcycle’s internal components and reduce the longevity of your motorcycle.
Addressing Wear and Tear
Over time, the primary oil in your Street Glide will wear down and lose its lubricating properties. This can cause wear and tear on internal components, leading to decreased performance and even engine damage.
To address wear and tear, it’s important to regularly check the level and condition of your motorcycle’s primary oil. If you notice any signs of wear or damage, such as metal shavings or a burnt smell, it may be time to change the oil or seek professional maintenance.
In conclusion, proper maintenance of your Street Glide’s primary oil is essential for the longevity and performance of your motorcycle. Regular oil changes and addressing wear and tear can help prevent damage to internal components and keep your motorcycle running smoothly.
Optimizing Performance
When it comes to optimizing the performance of your Street Glide, choosing the right primary oil is crucial. The primary oil is responsible for lubricating the clutch, transmission, and primary chain, which are all critical components of your bike. In this section, we will discuss how to choose the right oil and understand its properties to ensure optimal performance.
Choosing the Right Oil
There are several primary oil brands available on the market that are suitable for Harley-Davidson motorcycles. However, it is important to choose an oil that is specifically designed for your Street Glide. Look for an oil that is formulated with anti-wear agents to reduce friction between the clutch plates and prevent premature wear.
It is also important to consider the operating temperature of your engine when choosing an oil. If your bike runs hot, you may want to consider an oil with a higher viscosity to ensure proper lubrication. On the other hand, if you frequently ride in colder temperatures, you may want to choose an oil with a lower viscosity to ensure proper flow.
Understanding Oil Properties
To ensure optimal performance, it is important to understand the properties of primary oil. One of the most important properties is viscosity, which refers to the oil’s resistance to flow. A higher viscosity oil will provide better lubrication at high temperatures, while a lower viscosity oil will provide better flow at low temperatures.
Another important property of primary oil is its ability to withstand heat. As your engine heats up, the oil will begin to break down, which can lead to premature wear and damage. Look for an oil that is designed to withstand high temperatures to ensure proper lubrication and protection.
In conclusion, choosing the right primary oil is essential to optimizing the performance of your Street Glide. By understanding the properties of oil and choosing an oil that is specifically designed for your bike, you can ensure proper lubrication, reduce friction, and protect your engine from premature wear.
Harley-Davidson Specifics
Model Compatibility
When it comes to primary oil for your Street Glide, it’s important to make sure you’re using the right type of oil that’s compatible with your specific Harley-Davidson model. According to the Harley-Davidson service manual, the following models use the same type of primary oil:
- Touring models (except CVO and Trike) from 1984 to present
- Softail models (except CVO) from 1984 to present
- Dyna models from 1991 to present (except FXDLS)
If you’re unsure about which type of oil to use for your Street Glide, it’s always best to consult the service manual or reach out to a trusted mechanic.
Harley-Davidson Oil Recommendations
Harley-Davidson recommends using their own brand of primary oil, which is formulated specifically for their motorcycles. This oil is designed to provide optimal performance and protection for your engine.
However, if you prefer to use a different brand of oil, make sure it meets the following specifications:
- API GL-5 or GL-4
- SAE 75W-90 or 75W-140
- MIL-L-2105C or MIL-L-2105D
It’s important to note that using the wrong type of oil can cause damage to your engine and void your warranty. So, make sure you’re using the right type of oil for your Harley-Davidson motorcycle.
Oil Brands and Alternatives
When it comes to choosing the right oil for your Street Glide’s primary, there are a variety of oil brands and alternatives to choose from. In this section, we’ll discuss some of the popular oil brands and synthetic vs. conventional oils.
Popular Oil Brands
There are several oil brands available in the market that are popular among Street Glide owners. Some of the popular brands include Amsoil, Redline, and Mobil 1.
Amsoil is a synthetic oil brand that is known for its high-quality synthetic oils. Their synthetic v-twin primary fluid is specifically designed for Harley-Davidson motorcycles, including Street Glides. It provides excellent wear protection and reduces friction, which can help improve the performance of your motorcycle.
Redline is another popular oil brand that offers a wide range of oils for motorcycles. Their synthetic 20w-50 is a popular choice among Street Glide owners. It provides excellent protection against wear and tear and helps keep your engine running smoothly.
Mobil 1 is a well-known brand that offers both synthetic and conventional oils. Their V-twin primary oil is a popular choice among Harley-Davidson owners. It provides excellent wear protection and helps keep your engine running smoothly.
Synthetic vs. Conventional Oils
When it comes to choosing between synthetic and conventional oils, there are a few things to consider. Synthetic oils are generally more expensive than conventional oils, but they offer better protection against wear and tear. They also tend to last longer and can help improve the performance of your motorcycle.
Conventional oils, on the other hand, are less expensive and more widely available. They still provide good protection against wear and tear, but they may not last as long as synthetic oils.
It’s important to note that some Harley-Davidson models require gear lube in the primary, while others require v-twin primary oil. It’s important to check your owner’s manual to see which type of oil is recommended for your motorcycle.
In conclusion, there are several oil brands and alternatives available for Street Glide owners to choose from. Whether you choose a synthetic or conventional oil, make sure to choose an oil that is specifically designed for Harley-Davidson motorcycles.
Troubleshooting Common Issues
If you own a Harley Davidson Street Glide, you may encounter some issues with your primary oil. Here are some common problems and their solutions:
Leakage and Contamination
If you notice that your primary oil is leaking, it’s important to address the issue right away. Check the oil level and look for any signs of contamination, such as metal or debris. If you see any metal or debris in the oil, it could be a sign of a more serious problem, such as a damaged clutch or transmission.
To fix the issue, you may need to replace the primary gasket or seal. It’s also important to make sure that the oil is not overfilled, as this can cause excess pressure and lead to leaks.
Clutch and Shifting Problems
Another common issue with primary oil is clutch slip or shifting problems. If you notice that your clutch is slipping or that it’s difficult to shift gears, it could be a sign of low or contaminated oil.
To fix the issue, start by checking the oil level and looking for any signs of contamination. If the oil level is low, add more oil until it reaches the appropriate level. If you notice any metal or debris in the oil, it’s important to address the issue right away.
You may also need to adjust the clutch cable or replace the clutch plates if they are worn or damaged. In some cases, you may need to flush the system and replace the oil with fresh ATF.
Remember, regular maintenance and inspection of your primary oil can help prevent these common issues from occurring. If you’re unsure about how to troubleshoot or fix a problem with your primary oil, it’s always best to consult a professional mechanic who specializes in Harley Davidson motorcycles.
Frequently Asked Questions
What type of oil is recommended for the primary chaincase on a Harley Davidson?
Harley Davidson recommends using a primary chaincase lubricant that meets the API GL-5 classification. The primary chaincase lubricant should be specifically formulated for use in Harley Davidson motorcycles.
Is there a preferred brand of primary oil for Harley Davidson motorcycles?
There is no single brand of primary oil that is universally recommended for Harley Davidson motorcycles. However, Harley Davidson does offer its own line of primary chaincase lubricants that are specifically formulated for use in their motorcycles. Other reputable brands that offer primary chaincase lubricants for Harley Davidson motorcycles include Amsoil, Mobil 1, and Red Line.
Can synthetic oil be used in the primary of a Harley Davidson Street Glide?
Yes, synthetic oil can be used in the primary of a Harley Davidson Street Glide. Synthetic oils offer superior performance and protection compared to conventional oils. However, it is important to choose a synthetic oil that is specifically formulated for use in Harley Davidson motorcycles.
How often should the primary oil be changed on a Harley Street Glide?
Harley Davidson recommends changing the primary oil every 5,000 miles or every 12 months, whichever comes first. However, it is always a good idea to check your owner’s manual for specific recommendations for your particular model.
What are the benefits of using a specific primary oil in my Harley transmission?
Using a specific primary oil in your Harley transmission can provide a number of benefits, including improved shifting performance, reduced wear and tear on transmission components, and improved overall performance. Primary chaincase lubricants are specifically formulated to provide the necessary protection and performance characteristics required by the transmission.
Are there any specific viscosity requirements for primary oils in Harley 6 speed transmissions?
Yes, Harley Davidson recommends using a primary chaincase lubricant with a viscosity grade of SAE 85W-140 for 6-speed transmissions. This viscosity grade provides the necessary protection and performance characteristics required by the transmission.
