Give your Harley-Davidson® powertrain the ultimate protection with NEW premium Screamin’ Eagle® SYN3® Synthetic Lubricant. This advanced dual-weight, full-synthetic lubricant is developed, tested and validated by Harley-Davidson engineers for all Harley-Davidson® engine, transmission and primary drive applications. The only oil trusted by Harley-Davidson Factory Racing to withstand the challenge of full-throttle competition, the new SYN3 Synthetic will keep your street bike running strong season after season.
SAE 15W-50 + SAE 5 = Dual Grade
Dual-grade oil means it has two, certified viscosity ratings. The NEW SYN3® provides an SAE 15W-50 (multi-grade) and an SAE 50 (monograde), with ONE fluid. With dual-grade performance, NEW SYN3 is designed to perform across a wide range of temperatures, ensuring optimal performance in all riding conditions.
The new formula is an innovative change that has been modernized and improved to allow the oil to operate with dual grade performance. The new SYN3 provides the viscosity stability of an SAE 50 for high temps and high load operation while performing like an SAE 15W-50 for cold weather starts and operation.
No. The change in winter weight (from 20W to 15W,) will not harm your Harley-Davidson’s performance in hot weather climates. The new fluid will perform well as an SAE-50, but also protect like a 15W-50 in colder weather. New SYN3 actually performs better in high-heat applications.
Yes! The new and improved SYN3 is fully backwards compatible for all Harley-Davidson’s specifying SAE 20W-50 as an option.
The new SYN3 has been rigorously tested for years. Thousands of dyno hours and miles at the Arizona Proving Grounds provide undeniable proof that the new SYN3 is the best oil for your Harley-Davidson. No other product has been tested to this level.
Some Harley-Davidson powertrains are engineered to perform well on mineral-based or semi-synthetic lubricants but the truth is that synthetic oil, especially the new SYN3, is a marked upgrade providing additional long term protection of your investment.
No, SYN3 is blended with an additive package already included. Other additives are not needed and may not be compatible with SYN3. In fact, oil additives may dilute the SYN3 formulation; therefore, we caution against using additives, as the wrong additive package may cause damage to your transmission or other components
The new oil has PAO but it has a proprietary blend of synthetics.
SYN3 is a proprietary blend, exclusively custom-blended for Harley-Davidson.
Changing and maintaining your motorcycle's oil may seem like a small task, but it plays a significant role in supporting your bike’s performance and longevity. Whether you decide to do it yourself or let a professional handle it, regular oil changes are an essential part of motorcycle ownership.
Have another Oil FAQ you want answered? Stop by your local Harley-Davidson® dealer, and they can answer and questions you have regarding motorcycle oil or drop your question in the comments below for a chance to have it answered.