I dunno if anyone else has or knows about this problem. For some reason, and this has happened for as long as I can remember. For some reason, my gas differs. For example sometimes it will be normal. Then other times for example, say I have 320miles according to the ecu, I'd travel 15 miles, but only use say 4 miles according to the computer. However, a lot of times I'll get gas, or later on in the tanks life...I'll start driving and I'll use up like 20 miles in only 5...wtf!
I dunno if the tank is leveling itself, or something else is going on. It's just really annoying. I'm not throwing any codes, and the car isn't doing anything funny. I would just like to know if anyone else has noticed this with their cougar. Thanks!