Hey guys, just joined the forum, I have a 2000 Mustang with a 3.8L and a standard tranny.. This car is a replacement for my old car which was a focus. One thing I haven't been too impressed with on the Mustang is the gas mileage, I didn't expect it to do as well as my little 2.3L economy box, but I have been averaging around 15-18 MPG, which seems a little rough for a V6. Even weeks where I'm not letting into the gas pedal, it seems to be guzzling gas.. Anyone have any suggestions as to what I can do to improve this? I have already tuned it up, I do my oil changes every 3000 miles with full synthetic, and I check my tire pressure often.. Someone said dual-exhaust, cold air intake, and underdrive pulleys would make a huge difference, but I am a little tight on cash these days, so I just want to make sure the investment in those things would pay off at the pump eventually.. I appreciate any advice!