Any suggestions on which engine oil to run with a turbo harley ?

 

Just use the same viscosity Harley recommends but I would use a good synthetic oil for sure.

 

I like Valvoline VR1 oil for any application.

 

We run in all our turbo busa ninjas Harleys Mobil 15/50 or Mobil 20/50 full syn. Never I mean never an issue.
Farm & Fleet $5.75/6.74 for mobil 15/50 we also use Mystick 15/50 semi syn in tubo bikes runs great no issues farm and fleet 21.99 for 2 gallons.
Call me if you have any ???????