On Thu, 14 Mar 2002 10:58:59 -0500, Bob Tom wrote:
> Normal thermal cycling will eventually cause the ceramic to start to
> crumble. Cats are designed to last about 100k miles but if driving is
> mainly short trips (every trip thermal cycles the cat) then early
> failure could result.
Okay, maybe I don't feel quite so bad then. Mine went over 81,000 miles.
The guy at the shop was talking like they're supposed to last forever
unless you do something dumb to break them.
> I wouldn't mention anything at the inspection. If they do, just say you
> don't want to destroy the cat when you go offroading though water.
> That's just my personal opinion. Don't forget to compensate for the
> aft O2 sensor as well (or is this for the '95?).
Yeah, the '95 is now our official mud vehicle. I think when I take it in
for an oil change next month I'll casually ask them what the Drive Clean
rules are. In any case, I don't need to have the test done until December
2003, so I've got some time before I really have to worry about it.
Thanks for the info.
------------------------------------------------
Jason Bleazard jbleazard@sympatico.ca Toronto, Ontario
his: '95 Dakota Sport 4x4, 3.9 V6, 5spd, Reg. Cab, white
hers: '01 Dakota Sport 4x4, 4.7 V8, Auto, Quad Cab, black
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