my fren use the 1.8 Gsr terbalik in waja....i'm shocked with his fuel consumption...full tank from klang, n there was another 3/4 tank when we reach exit Kota Tinggi...drag with vtec summore at highway...while my GTi, full tank from KL, there was only 1/4 left when reach Kota Tinggi....average speed around 140 - 160kmh..confuse la...anyone can comment this??..