Strangely, Honda OEM cats will reamina effective for over 500,000 miles,
given proper care. Try THAT with an aftermarket cat!
Of course, "proper care" is the key phrase.
My sources tell me the most common cause of early cat failure is poor
maintenance, especially poor ignition maintenance. Even slight misfires
will eventually "sinter" the ceria surface of the core, greatly reducing
*ONLY* use OEM ignition parts, and perform timely maintenance!
A likely story.
I suppose that the next thing you'll utter is, "That damned tree jumped
right out in front of me." Or, "That freakin' pole wasn't there before
I backed up."
Typical "north-of-the-border" rhetoric.
OTOH, my splel cheekah alus woks gud...
(Who's spell checker always wants to correct "tegger" to egger...)
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