Not to upset the list here with this question...
I've already decided on a good full synthetic for the engine (amsoil or syn3), but what are others using for the trans and primary.

Seems the owner's manual talks about formula+ or syn3 for the trans (I'm planning on using formula+ - I like that stuff), but the primary only mentions syn3. Am I restricted to syn3 only for the primary?

Yes, I need to update my sig.

 

I got off Syn 3 when my bike was off warranty, plus I had a service contract. Now I use Redline in all 3 holes.

 

I have a '13 CVO Ultra with the ESP.
I use Syn3 in the engine and primary but I use Red Line Shockproof in the tranny.

 

Don't put synthetics...especially Syn3 in the primary, too slippery fro hard use.

Me:
Engine: Amsoil
Primary: HDcformula+
Tranny: Belrsy

Bike is very yap now...

 

Syn3 in the engine, Redline Shockproof in the tranny and Harley Formula + in the primary. Best combo I've found so far.

 

Eagle 1 20/50 in all holes.All get changed @ 5k.I'll let the forum know when it blows up

 

Using Mobil 1 in crankcase either 20w-50 or 15w-50. Using Mobil 1 75w-140 in trans. Have not settled on primary but usually use either Formula + or Redline if I'm around a store that carries it. I always use a synthetic in crankcase as it sometimes gets hot around here and traffic jams can be a killer. I've seen oil temps in excess of 280 degrees when in summer stop and go traffic. This twin cooled engine does stay a bit cooler than my old 2011.

 

Thanks for all the replies. I see everyone using something other than syn3 in primary and trans despite what the manual says. I'll do the same. Gonna use formula+ since I have a bunch in my garage. I'll stick to synthetic 20w50 in the engine.

 

Mobil 1 V-Twin 20/50, Redline Primary & Redline Shockproof in trans.

 

Engine:....Amsoil 10w-60
Primary:...Amsoil 20w50
Tranny:....Amsoil Severe Gear 75w-140