Hi,
I just purchased a used 2011 EX35 several days ago. After I received the car, I reseted the fuel economy status and started calculating MPG from scratch. Before I reseted it, it read 17.8 MPG, but after I reseted it and drove a while, it read only 11.8 MPG.
I know in winter the fuel economy will be worse and where I live is pretty code, but this is definitely way to worse. I went to the mechanics before buying the car and they says it needs to replace catalytic converters, which takes roughly $2k. Will this be the main reason? I didn't see any light like check engine or change oil on the panel.
Has anyone encountered a similar issue? Where shall I start to inspect? Which bad part might contribute to that?
Thanks~