I HAVE HAD MY GTI SINCE JULY LAST YEAR AND WAS ADVISED TO USE SUPERUNLEADED, IWAS WONDERING WHAT OTHER OWNERS WAS PUTTING IN THEIR CARS. THEIR IS ONLY A COUPLE OF GARAGES THAT SELL SUPER NEAR ME AND IS ABOUT SIX PENCE MORE A LITRE THAN NORMAL. IWOULD LIKE TO KNOW WHAT THE DIFFERENCE IS BETWEEN...