Hi all. I have a question. My 2012 optima has 50,000 miles on it. Earlier today I left for work with 90 miles on my tank. By the time I got home, I had 45 miles left on my tank. The drive is only twenty minutes each way. Is it right for me to lose almost 40 miles on my tank?! I feel like I might be losing fuel somewhere. My warranty expires at 60,000 miles so I need to figure it out soon! Thanks!