well my dad said o2 sensors should be replaced every 60k miles, but how would i figure out if mine was replaced at 60k or its still running on stock o2?

is there a way to test the sensor?

 

60K seems fairly short for o2 replacement. If your not having any problems I would leave them alone. Chances are they will throw a SES light if they are bad.

 

If it ain't broke, don't fix it

 

If you have access to a scan tool you can take a look at what the O2s are doing and see if they are slow or reading off.

 

I was led to believe by a tech the sensors were part of the infamous 100,000 mile tuneup when you would FIRST change your antfreeze, plugs and wires.

 

That's what I was told as well. I replaced my O2's at 110,000, along with plugs and wires.

 

O2's should be good to 100k miles. However, the more accurate they are, the better. Take that FWIW. I agree with revtime, get it scanned, see what's going on. Should have's and probably's don't mean squat when you've got hard facts.

 

well one of my mechanics says dont replace them until they fail and the other one says 60k

 

How O2's work. Lots of info there to help make an informed decision.

Both of your mech's have a point depending on what perspective you're looking at it from. If you don't want to spend the $ on them until it's absolutely necessary, wait for them to fail. During the time it takes for them to fail, your mpg and power will steadily decline until they do fail completely.

60k miles is somewhat arbitrary.. there's no way to know an exact mileage at which an O2 sensor needs replacing. It's just a number on the safe side assuming all else is fine. Not bad, but not entirely accurate either. Your car may have other issues causing a rich/lean condition.. 60k miles would then be irrelevant. It could have said problem(s) at 200 miles.

Back to the scan now - this is where you'll find out exactly what those sensors are doing. Yours could be perfectly fine or the could be dragging ***. A scan will tell you what your O2's are doing. No guess work, no estimating, just the facts.