I run regular all the time but I think what's more important than octane is quality. There are a lot of companies out there that are selling just garbage for gasoline. Some I wouldn't put in my worst enemies motorcycles. I run shell 85 % of the time and if I can't find that BP or Mobil are my next choices. I consider Wesco gas up here in Michigan to be the worst on the market. There was a time I thought all gasoline was equal but not anymore. All my vehicles run perfect since I figure that out many years ago.