I'm switching from Harley's Syn 3 20/50 to Mobil 1 V-Twin 20/50.

Maybe a dumb question, but can I use the Mobil 1 in all three holes just like the Syn 3?

 

Yes I believe so because our transmission oil is separate from the engine oil. I use Red Line synthetic transmission fluid in the tranny and Mobil 1 in the engine.

 

The information you seek is printed on the bottle of oil.

 

Redline shockproof for tranny

 

My hd Indy says no syn. In the clutch pack. Only engine and trans.

 

Find a new indy...

 

No matter how many times I hear it my mind goes to dirty places when I hear the expression "all three holes"...

 

Thanks, Yea, I did see that, but it wasn't Harley Specific.

I figured it was ok, but I guess I just needed a little reasurrance

Thanks

 

Just me but I wouldnt use trans oil in my engine or vice versa.

 

Big Twins
20W-50 VTwin - Engine
10W-40 4T Racing - Primary
75W-90 LS Gear Oil - Transmission
Sportys
Use the 20W-50 VTwin in the transmission/primary unit since they are not separate like the BTs.

These are all Mobile 1 products.