My city MPG can drop to 10mpg, but often averages 12. Highway is 19-20, which is normal. Does any of you FX45/50 owners get better gas mileage around town?
I have no check engine lights "on" and other than 115,000 miles on the OEM O2 Sensors, I'm considering the possibility of replacing my 2 "upstream" O2 sensors. I'm also thinking O2 Sensors are the next step to improving city mpg if I have already performed a Seafoam treatment and cleaned my MAF sensor. So what do you think? And why do so many sensor vary in price?
I'm also concerned these cheap O2 sensors on Amazon may prematurely fail so I want to stick with Denso, Bosch or NTK/NGK, but if anyone has used the Walker or other Ebay vendor brands, please let me know if you are satisfied and if your mpg or performance improved after you replaced your sensors.
At O'reilly's these name brand sensors run $80-$120 each and since there are 2-upstream and 2-downstream sensors that's a lot of clams. So I'm thinking of only replacing the upstream if I am trying to improve my city mpg vs. trying to pass an emissions test. ...And remember I don't have any sensor codes flashed on my OBD2 Scanner.
So before I start throwing more money at this problem I'm hoping there are some testimonials out there to guide my decision. And I full accept most mechanics will say to do nothing until you get a TDC. However, I also know all O2 sensors degrade over time for a lot of reasons. And frankly, it's easier to just replace them vs. test them.
Does anyone know what the OEM brand of sensors Infiniti uses?
Here's a chart I created with extra information and part numbers I have be compiling for your library.
I have no check engine lights "on" and other than 115,000 miles on the OEM O2 Sensors, I'm considering the possibility of replacing my 2 "upstream" O2 sensors. I'm also thinking O2 Sensors are the next step to improving city mpg if I have already performed a Seafoam treatment and cleaned my MAF sensor. So what do you think? And why do so many sensor vary in price?
I'm also concerned these cheap O2 sensors on Amazon may prematurely fail so I want to stick with Denso, Bosch or NTK/NGK, but if anyone has used the Walker or other Ebay vendor brands, please let me know if you are satisfied and if your mpg or performance improved after you replaced your sensors.
At O'reilly's these name brand sensors run $80-$120 each and since there are 2-upstream and 2-downstream sensors that's a lot of clams. So I'm thinking of only replacing the upstream if I am trying to improve my city mpg vs. trying to pass an emissions test. ...And remember I don't have any sensor codes flashed on my OBD2 Scanner.
So before I start throwing more money at this problem I'm hoping there are some testimonials out there to guide my decision. And I full accept most mechanics will say to do nothing until you get a TDC. However, I also know all O2 sensors degrade over time for a lot of reasons. And frankly, it's easier to just replace them vs. test them.
Does anyone know what the OEM brand of sensors Infiniti uses?
Here's a chart I created with extra information and part numbers I have be compiling for your library.