Question: What Oil To Use In Harley Davidson Transmission?

Can I use 75w90 in my Harley transmission?

It’s a synthetic gear oil. It will be just fine in the trans. I would recommend using gear oil in there over motor oil.

How much oil goes in a Harley transmission?

The transmission fluid capacity is approximately 24 ounces (0.71 liters).

Can I use 20W50 in my Harley transmission?

Which choice is better for Harley-Davidson transmissions? A particularly nice feature about AMSOIL 20W-50 Synthetic Motorcycle Oil is that it can be used in the engine, transmission and primary chaincase of Harley-Davidson motorcycles.

Can you use ATF in Harley transmission?

We submit that ATF is too thin for Harley primary use. It’s true that many Harley riders have had years of problem-free performance with ATF. We contend that a thicker oil will provide superior metal-to-metal wear protection. Chains and sprockets will last longer using a fluid with an appropriate viscosity.

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How often should I change the transmission oil in my Harley?

How often should I change the tranny oil in my Harley? According to the manufacturer’s service manual, you should change the engine oil at 5,000 miles. Primary oil should change at 10,000 miles, and trans fluid at 20,000 miles. A transmission oil change should happen every year.

How often should I change the primary oil in my Harley?

Oil changes as per Owners manual every 5k Miles, Tranny and Primary every 10K. If you ride it more you’ll be changing it more often.

How much oil goes in a Harley primary?

Fill the primary with oil Harley Davidson Softails require one quart of primary fluid. Be sure to check your owner’s manual or the AMSOIL Product Guide for the correct primary oil capacity for your bike.

What happens if you overfill Harley transmission?

The main thing that will happen if you slightly overfill the trans is that some fluid could be blown out the vent tube when hot.

Can I put 20W50 in my motorcycle?

Based on what I’ve read, the thicker oil (20w50) is generally not recommended for higher revving bikes like the R1, particularly the Amsoil which supposedly is better suited for V-twins & Harleys (low RPMs, air-cooled & longer oil change intervals) & can adversely impact horsepower / gas mileage.

What viscosity is Harley primary oil?

The 20W-50 motorcycle oil’s viscosity is right in the “sweet spot” for optimum operation in all three holes and the volumes of positive reviews we receive back this up. Gear lubes do contain heavy doses of “extreme pressure” additives which many believe prevent transmission wear and provide quieter operation.

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Can you use 20W50 Motorcycle Oil?

Suitable Vehicles. Depending on the recommendations for the particular vehicle, 20W50 oil is suitable for large or small diesel engines, gasoline engines, motorcycles and aviation vehicles. It is also suitable for both air- and liquid-cooled engines.

What kind of fluid goes in a Harley primary?

You actually have a couple of choices for the primary drive. The optimum product would be Mobil 1 Racing™ 4T 10W-40 motorcycle oil, but it is also okay to use Mobil 1™ V-Twin 20W-50.

What kind of fluid goes in a Harley clutch?

Harley-Davidson recommends that you replace/flush the DOT 4 brake fluid in your Harley clutch system every two years regardless of mileage.

What weight oil do you use in a Harley-Davidson?

Under a majority of circumstances, most Harley-Davidson bikes can function with oil that carries a weight of 20W-50. It can handle temperatures that range up to 100 degrees Fahrenheit, but some facts and variations are worth noting: You should utilize 10W-40 when your local temperatures never rise above 60 degrees.

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