2003年2月6日 · SYN3 was tested to confirm that the lubricant provides the protection required for the engine, primary chaincase and transmission for the drain intervals specified in the Owner's Manual. Q: Does SYN3 help with anti-wear or roller bearing wear? A: SYN3 contains anti-wear formulations to provide the proper lubricity for all moving parts.

2014年9月29日 · 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. For more information see SYN3® Premium Level of Protection.

2012年12月10日 · Just pointing out a few fact about HD Syn3 oil and then you do some more research if you want. HD Syn3 oil is a 60% synthetic 40% petroleum blend, that means Syn 3 is a synthetic blend not a pure synthetic oil. HD oil is not class rated oil such as API/JASO rating, so if Syn3 is good oil why is it not rated.

2017年5月13日 · It's not that Syn3 is bad, but on some oil comparisons there are some that are considered better, like Amsoil for instance. I use Mobile1 synthetic 20-50 V-Twin bc the surveys I've seen place it near the top AND bc I can buy it at Walmart for $9.something a qt.

2011年9月22日 · If you're question is a bout whether Syn3 in a 3 holes if ine - the answer is yes. I used Syn3 in all 4 holes for 45k miles in '04 road King without any issues and I'm going to do the same on my RGU. A lot of guys like to use gear oil in their trans and thats great, or other types of oil. But, IMHO it doesn't make much difference.

2008年4月16日 · FWIW- Syn3 is indeed a Group III synthetic (as are a large segment of synthetic oils on the market today,) however, Amsoil and Mobil 1 are both Group IV PAO synthetics. The only Group V synthetics commonly available I'm aware …

2013年1月5日 · Harley ran Syn3 in their transmissions up until 1.5 years ago. Not saying it was completely unrelated, but I'm willing to bet it was compounded by something else, especially in a 4K failure window. Running a non-gear specific 20w50 oil isn't a great idea unless it's a synthetic oil due to the sheering abilities.

2016年5月3日 · 3. H-D Syn3 is among the best choices for the engine but some alternatives may be even better. 4. H-D Formula+ is among the best choices for the primary but some alternatives may be even better. 5. Formula+ would be better than Syn3 in the transmission but not the ultimate choice. 6. There is no ultimate choice. 7.

2003年5月3日 · In the more severe 4-Ball Parameter 3 test the H-D Screamin Eagle Syn3 leaves a wear scar of 0.70 mm and the AMSOIL 20W-50 Synthetic Motorcycle Oil leaves a wear scar of 0.39 mm. This data indicates that the H-D Synthetic oil leaves a wear scar 79% higher than the AMSOIL motorcycle oil.

2006年2月14日 · HD Syn3 20-50 VS Mobile 1 Vtwin 20-50 Jump to Latest 16K views 21 replies 19 participants last post by JMynes Jun 28, 2006