I will be using Top Tier Gasoline in my new FLHXS.
Notice the difference in intake valve deposits in these images.


Top Tier website: Top Tier Gasoline
If you can't get good gas, add Techron Concentrate fuel additive: Techron
Notice the difference in intake valve deposits in these images.


Top Tier website: Top Tier Gasoline
If you can't get good gas, add Techron Concentrate fuel additive: Techron