Not sure about that...today's results proved otherwise...sort of.
Yesterday my car threw a check engine light, which tested out as P0135, which is the O2 sensor on bank 1 circuit 1 or something like that. Red flag since I know O2 failures are notorious for killing MPG.
Well yesterday's runs went fine as I posted. Today's runs didn't so much.
My first run, 5.0 miles, 44.2 MPG (record for that route).
My second run, 50.2 MPG (another record for that route).
Last trip, 5.7 miles...29.4 MPG.
Like, what the????
If this continues I'm going to be mad, and I will BIKE to wherever I need to go to get a replacement O2 sensor. My tank FE can't be ruined. It's already down to 44.2 (I averaged only 41.4 mpg today after that last trip).
