FIRST TANK? FIRST TANK? Come on NOBODY gets good milage for awhile on any vehicle. My first tank was 45mpg in my Civic, I now get anywhere from low 50' to I just got 60 and I have over 30,000 miles. It takes about 5000 miles to really start seeing good milage depending on the driver. If the owners manual says to use reg. then use reg. If vehicles that use reg. gas use premium gas they are wasting money as the engine is not designed to burn it. Premium is used in higher compression engines and burns slower, used in a lower compression engine it doesn't burn completely so you are in fact wasting $$$.Kevin

2004 silverblue 5 sp.