hey guys. i have a mk2 mondeo 2001 1.8 zetec 16v. is there any mods i can do without spending? mods incl increased mpg as its around half what i used in mi van, also a tweak in power if these are possible without spending?? also ive found on tickover the idle is at 1000rpm rather than usual 750?? or is this a ford thing? lol. thank you in advance guys