high octane

When I bought my Jeep the salesman told me to fill it with 87...premium schmemium he smirked. No need to go higher than regular. He said to fill it with 87 'til about 100,000 miles, then go up an octane after another 100,000, then after another 50 or so if I hear a knocking noise, go to 93...(He wanted to emphasize that this thing would last a looong time). Anywho, I'm now realizing that perhaps I too can run on 87. I just finished a cup of fully caffeinated java...and MAN DO I FEEL IT! woosh. I may as well have intravenously injected the juice of a dozen coffee beans into my veins, because that's what it feels like. It seems I no longer need 2-3 cups of morning java. wow. Never thought I'd see the day.