Don't buy gasoline from any fuel dispensing pump with only one hose.  This is true for motorcycles because when you purchase high 91 octane fuel the odds are the vehicle before you used low 87 octane fuel.  That fuel hose is now full of cheap fuel, but you are going to pay premium price.  You will get about one quart of this inferior fuel and that will dilute your five-gallon tank from 91 octane to about 89 or less.  As you can see, the oil companies and station owners have found a way to rob people a quart of fuel for each person that comes along who buys from them.  This deceptive sales practice should be outlawed.  It can also cause your motorcycle engine damage if the engine knocks and pings from this fuel dilution.  How come the local government and the weights and measures authorities is not taking corrective action to stop this theft and harmful practice?   Remember, you are paying for premium fuel but you are getting an inferior fuel diluting what is already in your gas tank.  What it did is ruin all five gallons of fuel in your gas tank that you paid premium price for.  It is costing you more than you think.  You will now need to carry an expensive octane booster additive with you to make up for the loss of octane and that adds to your total cost.  These single-hose pumps should be outlawed.

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