Can I use 75w90 in my Harley transmission?
It will be just fine in the trans. I would recommend using gear oil in there over motor oil. I run amsoil v-twin transmission oil in my bike.
Can you use 20W-50 in Harley transmission?
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.
What weight is Harley-Davidson transmission oil?
Our answer: It is perfectly acceptable to use 75W-140 gear oil in Harley-Davidson transmissions.
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.
Can you run gear oil in Harley primary?
Gear oil is measured differently than motor oil. 75w90 is close to the same viscosity as 10w40 motor oil. Just so long as it has no friction modifiers, it would be safe to run in the primary.
What oil goes in a Harley primary?
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.
How often should you change the transmission fluid on a Harley-Davidson?
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 often should I change the primary oil in my Harley?
It is recommended to change the oil at 1,000 miles, then every 10,000 miles after that.
How often should you change the oil on a Harley?
Mineral oil should be replaced every 2,000 to 3,000 miles, or at least once a year. Some experts may recommend a minimum of twice a year. Synthetic oil should be replaced every 7,000 to 10,000 miles, or at least once a year. Semi-synthetic oil should be replaced every 5,000 to 6,000 miles, or at least once a year.
Can I use gear oil in my Harley primary?
TESTED-CERTIFIED for use in Harley-Davidson® transmission and primary chaincase applications.