O2 sensor: wouldn't the check engine light come on? (I.e. It doesn't come on)
Fuel mileage measurement: I fill up my car every time at the pump and then reset my trip "A" until the next time I refill the tank
Autozone: I was unaware that they provided free scans, I'll try to stop by there today
Hello,
I have a 2006 toyota corolla with almost 130k miles on it
over the last 6 months I have noticed a slow decrease in my mpg numbers and now I am getting between 25-26 mpg
prior to 6 months ago I have never gotten below 30mpg ever!
any suggestions on where to start looking for reasons...