Thank you Paul for welcoming me, I appreciate the feedback, What I will do is find out how many gallon to full does the tank actually takes. Once my tank gets to a quarter of an tank I will put about $30 as I said before, or sometimes more but it seems to run out quickly and I'm at work majority of the day and when only drive about 12/14 highway miles daily, I just expected my gas to last at least 4 days.