nice to see a fellow South African here. where are you from inland or coast? im from the coast and the hilly terrain here hurts my mpg. However the altitude inland also hurts my mpg. visited family inland and my Tucson's mpg dropped almost a 1 litre per 100km. as for mods vacuum gauge for the win! also do an air dam its easiest mod for about a 10 to 15% improvement on highway. some also claim another 10% with a grill block. id do that before I start pulling out ac's and stuff.
I havnt done any physical mods on my cars yet except max tire press and serious drafting behind all the taxis here!
http://ecomodder.com/forum/showthrea...lts-31929.html
http://ecomodder.com/forum/showthrea...ock-31749.html