Four Oxygen Sensors?!

[Chevyguy]

I know Bosch etc advertizes that you should replace your O2 sensor periodically, but is that like the 3000 mile oil change myth??

My Stang is almost at 114K on the original Os's I was planning to put new ones in soon, of course I had the H pipe off the car back during the trans swap, would have been a piece of cake then eh oh well

So I'm curious too, how long do those sensors really last, I had assumed they "wore out" over time. I replaced the sensor on my Lumina twice, at 100Kand 200K miles, never really noticed anything, but they only cost $20 and only one.

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Frank W
90 5.0 LX coupe Daily driver. Silencer removed, K&N filter. Flexalite fan, 3 core radiator. FMS flywheel and Clutch, FMS blue wires Energy Suspension end links
88 Notch 2.3L 5 speed Parts/beater car My two Notchbacks

74 Chevy Laguna Type S-3 305 Finally fixed getting a 454 to put in garage
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