Hello everybody. A few weeks ago I bought a beautiful 2011 Lexus ES 350. Right in the first day I noticed something is not right with the gas mileage. It is usually between 11 and 13 MPG. If I go on the highway, if I am lucky it would be 18-19 MPG. I know that is not right. Also, for example if it shows me that I have 300 miles left with my full tank and I drive (for example) 50 miles, instead of showing 250 which would be normal, the computer shows me 198. Also I need to specify that even if I do not need to, I always use the PREMIUM gas (93).
Any idea if this could be fixable or I just got a bad car ? Thank you in advance for your response.