What is the best oil to put in a Harley-Davidson transmission?
For the record, AMSOIL recommends AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil in the engine, transmission and primary chaincase on most Harleys (consult our Motorcycle Product Guide for specific recommendations).
Can you use ATF in Harley primary?
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 I use gear oil in my Harley transmission?
Our answer: It is perfectly acceptable to use 75W-140 gear oil in Harley-Davidson transmissions. For instance, AMSOIL V-Twin Synthetic Transmission Oil is an SAE 110 gear oil.
What oil is equivalent to HD 360?
Harley-Davidson® continues to offer H-D® 360 Motorcycle Oil. SYN3® is an alternative lubricant product from Harley-Davidson®, and in particular, a formula that is very effective for high performance engines and hot climate applications.
Can I put gear oil in my primary?
Transmission is a a gear box: put gear oil in it. Primary case, just about any oil will work.
When should I use 20W-50 oil?
20W50 motor oil is suitable for warmer climates, where the higher temperature causes the oil to thin. It is also useful for vehicles subject to hot temperatures and for those used for high-stress activities such as hauling or pulling trailers.
Is Harley formula plus synthetic?
TESTED-CERTIFIED for use in Harley-Davidson® engine, primary chaincase and transmission applications, Screamin’ Eagle® SYN3® Full Synthetic Lubricant makes changing and topping-off fluids a simple one-product process.
When to change transmission fluid on a Dyna Glide?
Figure 1. Drain plugs of a Dyna Glide illustrated. It is best to change the fluids when the bike is warm. Take your motorcycle on a 5-minute ride and run through the gears a few times, to warm and thin the fluid, making it drain faster and more completely. Be careful of the hot exhaust and engine parts.
What kind of oil do you use for transmission on a Harley Davidson?
So those opting for a gear lube thinking that they are using thicker oil, really are not. Those using an 80W or 75W-90 in their transmissions are actually using a much thinner 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.
Is it OK to mix synthetic transmission fluid with regular?
ATF +4 is a synthetic fluid for finely-tuned transmissions, so if you use a non-synthetic ATF instead of ATF +4 in a car or truck that calls for it, you could damage the transmission. You may use ATF +4 in most applications that call for older Dexron and Mercon fluids.
Is it bad to use synthetic oil on a Harley Davidson?
In fact, Harley Davidson even produces a synthetic oil itself, so clearly synthetic oils are not inherently bad for Harley Davidson engines. While Harley Davidson produces fantastic motorcycles, they are also a company who definitely wants you to buy into their products to turn a profit.