Okay I have a question, please dont yell at me or tell me to do a search. I live in a small town with no bike shops near by. Can I use Mobile 1 synthectic in all 3 holes, or does it have to be Mobile 1 V Twin? I understand that I need the heavier Mobile 1 in the tranny. But what about the crank and primary?

 

Lots of folks use Mobil 15/50 gold cap.

 

I use Mobile 1 Synthetic 15W 50 in all three holes. I change fluids every 5000 miles.

 

I run the V twin oil 20w50 in the engine and primary. Mobil 1 syn gear oil 75w90 in the tranny, get both at the local Walmart. I change engine every 5000 all three at 10000.

 

If it was my bike it would get the oil formulated for motorcycles Mobil V Twin. I would use Mobil 1 in my car.

 

You can order your oil online. I do that with the Lucas oils I use and really like getting a great price and having it delivered to me.

 

He speaks the truth.

 

You can use regular Mobile 1 synthetic in 2 holes, Mobile 1 synthetic V-Twin in all 3.
Do not use regular Mobile 1 in your primary. It's fine for the engine and tranny. You may use the V-Twin formula in your primary. The V-Twin and regualr formulas have different amounts of additives. The additives in the regular formula (for cars) are too slippery for your clutch plates, and will cause slippage.

 

Exactly, the motorcycle oils are usually designed to be wet clutch compatible, which means they don't contain friction modifiers. You may or may not have problems if used in the primary.