I have had my 2000se for about 2months now,and it seems to have had some common problems for the grand prix,such as the low coolant light,wheel bearing,and a noise in the transmission after a little while of driving. Recently I get a small whif of fuel when I come off the highway, It doesn't happen all the time and seems to have no pattern,I'm in the process of checking my mpg does anyone know the tank size 12-15 gal?the engine is a 3.1 SFI.