Yo all, My 06 A4 2.0T FSI quattro s-line with 45K on it has just gone through a tank of gas averaging out at 29mpg. The 235/40 18 continentals were all at 27psi until I checked they should be at 35+psi. So halfway through the tank I raised the pressures. Anyone notice any differences running their tyres at various pressures? Anyone think 35psi is too high or too low?! Did it affect your fuel consumption? Your opinions would be greatly appreciated?!