Fox Just a quick question...

Mindseye007

Active Member
Oct 21, 2020
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How long do oxygen sensors last ?
I've had mine on my 1991 mustang lx coupe 5.0 since 1991 and have never been changed I only run 94 octane gas do you think i should buy new ones from lmr I've got 240,000 kms on her with mac 1 5/8th long tubes with a hi flow mac h-pipe with cats.
 

Mustang5L5

Put lubricant all over the balls
Mod Dude
Feb 18, 2001
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Hard to say. Depends on what sort of conditions they've seen over their lifespan.

At 150K miles, i would replace them with some motorcraft units for peace of mind.
 
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General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
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How long do oxygen sensors last ?
I've had mine on my 1991 mustang lx coupe 5.0 since 1991 and have never been changed I only run 94 octane gas do you think i should buy new ones from lmr I've got 240,000 kms on her with mac 1 5/8th long tubes with a hi flow mac h-pipe with cats.
you'll pay more for stuff like common replacement parts there, go to rockauto and find some motorcraft or bosch.JMO
 
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