Okay, i know this has been covered before.. but i couldnt seem to find what im looking for.. My 2007 ZR6 uses way too much petrol! on average 13.1L/100km and the thing is that its my wifes car so it gets driven normal conditions, no speeding, no dangerous driving. I dont understand how toyota can claim that its fuel consumption is 9.9L when i cant even manage to bring it down to 11? I dont know if every other 2007 ZR6 driver is getting the same results or if its just me. I use premium unleaded and service it on time... Any suggestions on what could be the problem? Thanks, Nesty
