Best Fluid 101: Harley Davidson Primary Fluid

The Harley-Davidson motorcycle is an iconic symbol of American culture and freedom.

With its distinctive V-twin engine, it has become a symbol of the open road and adventure.

But, like any machine, the Harley-Davidson motorcycle requires proper maintenance to ensure its longevity and smooth operation.

One essential component of this maintenance is ensuring that the engine, transmission, and primary chain case are adequately lubricated.

Harley’s compensator plays a critical role in this by acting as a shock absorber to prevent engine vibration from affecting the transmission.

Over time, the compensator can wear, causing a knocking or ticking noise.

So, Harley owners must determine what they value to decide which lubricant to use.

Those who prefer simplicity and convenience should follow the primary recommendation— using 20W-50 Synthetic V-Twin Motorcycle Oil in all three areas

That said, for those who prefer lubricants tailored to each area of their motorcycle, many amazing AMSOIL products are available.

Harley Davidson Primary Fluid

Want to know about Harley Davidson Primary Fluid?

As a Harley Davidson owner, you want to make sure you are properly taking care of your bike.

Having the correct primary fluids like Harley Davidson Primary Fluid is an important first step.

You can order these important fluids at Lube Oil Sales located in Los Angeles.

It is suggested to change your oil in your Harley every 5k Miles, Tranny, and Primary every 10K.

If you ride it more, you’ll be changing it more often.

You will need engine oil, transmission oil, primary oil, drain plug o-rings, and a ProFilter Wrench Removal Premium oil filter.

AMSOIL 20W-50 Synthetic Motorcycle Oil is recommended for the following Harley Davidson applications.

Suitable for engine, transmission, and primary chain case.

Do you know your Harley Davidson Primary Fluid…

Or your brake fluid, coolant, transmission fluid, fork oil, and clutch fluid all experience changes over time.

To ensure your bike is not running degraded fluids, check each for color and consistency at the start of the season.

Synthetic V-Twin Transmission Fluid and Synthetic V-Twin Primary Oil are designed to protect just one area of your bike rather than three.

This specificity allows AMSOIL to “over-engineer” each lubricant for its precise application.

Compared with 20W-50 Synthetic V-Twin Motorcycle Oil, Synthetic V-Twin Transmission Fluid has a higher viscosity.

A higher viscosity, or “thicker,” lubricant, provides some advantages in reducing transmission gear noise and allowing smooth gear changes.

By forming a thicker Harley Davidson Primary Fluid film on gears, the lubricant helps reduce loud “thunks” and gear noise.

The AMSOIL Synthetic V-Twin Primary Fluid is designed to protect primary chaincase components. And is the best Harley Davidson Primary Fluid.

Its viscosity is comparable to an SAE 50 motor oil.

It is formulated as a straight-weight lubricant, which offers better shear stability than multiple viscosities.

As a result, the Harley Davidson Primary Fluid remains thicker, which allows it to cling to the compensator without being “flung off” as easily.

Harley’s compensator acts as a shock absorber to prevent engine vibration from affecting the transmission.

As compensation wears, a knocking or ticking noise occurs. Synthetic V-Twin Primary Fluid also adheres well to the chain for excellent protection.

Harley owners must determine what they value to decide what route to take.

Those riders who prefer simplicity…

And the convenience of using one lubricant for all three areas should follow our primary recommendation of using 20W-50 Synthetic V-Twin Motorcycle Oil in all three areas.

Riders who aren’t worried about having extra bottles of oil lying around the garage and prefer lubricants tailored to each area of their motorcycle can use many of the amazing AMSOIL products we offer.

In some V-twin motorcycles, such as modern Indian* and Victory* bikes, the engine, transmission, and primary chain case all use the same lubricant.

Most Harley-Davidson* motorcycles, however, use a separate sump for each lubricant.

When you are the owner of a Harley and need to make a choice,  Use the same lubricant in all three areas of the bike.

Or use a separate lubricant formulated and labeled for each area.

• Convenience. Riders buy and install one lubricant. This reduces cost and results in fewer half-used bottles of oil lying around the garage.
• Simplicity. Remembering to buy one lubricant is far easier than remembering three.
• Great all-around performance in all three areas of the bike.