I am getting ready to give my '09 Fat Bob its first oil change. I know all about motorcycle versus car oil. I want to go with a synthetic oil for this change and was curious if anyone had any good recommendations?

Suggestions appreciated.

 

mobil-1 20w50 vtwin

 

amsoil hands down, i changed my oil about 2 months ago and just last week i changed all my fluids out again and there were all Clean as i put them in, or pretty close.

 

Any of the MC 20w50 syn oils are fine. Go with price.

Mobil1Vtwin
Amsoil
HD Syn3
Spectro
Redline (only after 3000 miles)

 

Mobil 20W-50 for engine, B&M trickshift for the primary and Lucas rear gear oil cant remember the weight for the tranny.

 

Personally I like Amsoil. But all the ones listed above are good as well.

 

Amsoil is the siht for me.It's good and it's what I can get nearby. Cheaper than HD syn-----which is also good,but the lowest bidder produces that oil.

 

I'm running Royal Purple 20w50 in engine and primary. 75w90 in tranny.

 

I've used Mobil 1, 15w 50 with no problems. It's about $6.50 a quart at Walmart. I used it for more than 15000 miles and no problems.

 

It is Ok...not stellar numbers when used in Harleys. It shears down to about a 40w in about 1000 miles. Which then it is a 15w40. So you may as well be running Rotella or Delvac 15w40.