In the past I have only replaced them when they throw a code, but I see how over time they get lazy and slow. does anyone ever just change them? ether for more millage or anything else ???
I have changed mine in the past with NGK or Bosch and noticed a big drop in millage and power. I replaced with Ac delo and all was good again. So my question is, Is there anything better than stock O2 sensors ? I have asked my local part stores and they say they are all the same. I don't be leave that one bit.![]()
What is everyone's thoughts ?