


How often should I change the primary oil in my Harley? A transmission oil change should happen every year. Primary oil should change at 10,000 miles, and trans fluid at 20,000 miles. 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. Gear lubes do contain heavy doses of “extreme pressure” additives which many believe prevent transmission wear and provide quieter operation.Īlso Read Why is dialogue so important? How often should I change the transmission oil in my Harley? 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. Chains and sprockets will last longer using a fluid with an appropriate viscosity. We contend that a thicker oil will provide superior metal-to-metal wear protection. It’s true that many Harley riders have had years of problem-free performance with ATF. We submit that ATF is too thin for Harley primary use. as long as its motorcycle specific you can pretty much run any weight oil. The 20w50 is perfect for summer riding because it protects a bit better in the high temps.

Harley Davidson Softails require one quart of primary fluid.

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. You actually have a couple of choices for the primary drive. What kind of oil goes in a Harley primary? Kinematic Viscosity 40☌, cSt (ASTM D-445) Kinematic Viscosity 100☌, cSt (ASTM D-445) Also Read What transports sediments at the slowest rate? What is the viscosity of Amsoil V-twin transmission fluid? SpecificationsĪMSOIL V-Twin Synthetic Transmission Oil (MVT)
