Hi y’all I just signed up and I completely love this site it has helped me so much. But my problem is for some weird reason my gas mileage has been terrible for only the second half of my gas tank. Like I would consistently get 20 mpg on my first half the second I hit the half way mark I’m getting 12 miles per gallon. Sometimes it’s even worse. Has anyone have this problem? I haven’t seen any posts about it. I’ve tried cleaning the throttle body and the maf sensor. I got some new kn drop in filters. The one thing I haven’t tried is spark plugs but it shouldn’t make a difference right? Since it’s only the second half of my tank. I haven’t tried the battery ecu reset or pedal reset yet. Anything helps. I’m going from 20 to 16 and it’s getting really annoying with the new gas prices. Thank you in advance.