O2 sensor replacement

[Corne]

Also known as lambda sensor. Is there a replacement interval on this? Surely it gets less effective over time, getting blocked with soot etc. I did use leaded fuel once in emergency. Is there a Bosch part no? Bike now on 70 000km.  New sensor might also improve fuel consumption

 

[Askook]

 

[JustBendIt]

 

[hando]

 

[Corne]

 

[hando]

 

[Askook]

 

[Matewis]

 

[Askook]

 

[hando]

 

[Askook]

 

[soundboi]