Originally Posted by
jm21ddd15
A point to think about, fuel is not the same, at each location. 87 octane in one station is not exactly the same as other stations. Different companies use different additives, and the length of time the fuel has "sat" in the gas stations large tanks, has an effect on it's performance. Fresh 87 octane, does not "stay" at 87 forever. it loses some of its "strength", as time goes on. Plus, you don't allways get what you think your purchasing, when buying fuel. I have a fuel tester, that will separate and tell the percentage of alcohol in the fuel. I have several times, seen fuel pumps marked at 10% alcohol or less, but when the fuel is tested, it's close to the 18% range. High alcohol is bad for small motors, like chains saws, and will decrease your milage on your cycle or car. This is another reason that some riders claim they get different MPG than others.