Has anybody run R90 gasoline in their JK's? It's basically gasoline without the ethanol. It is supposed to improve gas mileage.

 

R90 . One of my local stations advertises "No Ethanol". I use their gas in my Wide Glide because Harley recommends it. I've used it in my JK too. But that station is usually a bit higher on their prices. Not sure that I've noticed any differeance tho.

 

I noticed when I was dealing with spark knock, the ethanol free gas did much better that that with ethanol. Hard to find though.

 

You see it in the farming areas. Tractors run much better with out the corn. Irony huh.

 

Some stations employ higher percentages of Ethanol. Harley allows < 10%. I think some stations go as high as 15 - 20%.

 

I can't wait until they switch back to summer blend!!

 

I can't wait till they switch back to summer.