I have read several of the threads about the different oils available and recommended for my 2007 Heritage Softail Classic. I just purchased the bike and will be changing all three fluids this weekend. I have my selections narrowed down to a couple of fluids for each application and wanted to see if someone could help me decide between the two for each application. 1.) Engine oil - Mobile 1 V-twin 20W-50 or Spectro Heavy Duty Platinum Synthetic Oil 2.) Transmission - Spectro Heavy Duty Platinum 6-speed Transmission oil or Redline Heavy Duty Shockproof 3.) Primary - Spectro Heavy Duty Platinum Full Synthetic Transmission/Gear Oil, Formula +, or Redline V-Twin Transmission Oil with ShockProof Thanks for your help.