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Discussion Starter #1
how often do you guys change them out? im not sure what kind of plugs i have but my wires are taylor. my car just turned 71k and im the 2nd owner. not sure if these are factory or not. thx in advance
 

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Discussion Starter #3
not really concerned, just preventative maintenance like changing oil, normal things that need to be done before "it" hits the fan. maybe i'll just go till i realize the symptoms are present, like a "dont replace if not broken" type of thing?
 

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At 71k there is a chance the plugs were never changed before, then again with those wires on it something tells me the original owner took care of the car, I am betting if they are original plugs they are iridium, with iridium plugs some are said to be good for up to 100k or so, but I do not like to leave them in there that long, I'd change them around every 50k miles, and I always use iridium, I prefer AC Delco, or NGK plugs.

As for oil I like to change mine out every 3,000 - 4,000 miles, and I use Mobil One Synthetic, I could probably get another 1,000 - 2,000 miles on the oil easily, but I do not drive daily, so it takes me a while to get that many miles on it, so I will change it out if I have not hit that 3-4k mile mark within 2 years.

Did the car ever have the lower intake manifold gaskets changed out for the aluminum framed ones?
If not IMO that is the first thing I'd do.
 

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Discussion Starter #5
i'm not sure if any of the gaskets were replaced, its extremely clean underneath. although i seen the ubend is gone, so maybe it was done i dont know i cant really tell. i just want to be prepared if i do have to do the plugs and wires then i will. yea i was told iridium plugs and autolite 104s are the way to go if replacing, i just wish i knew when they were done before i got the car. same with the sc oil i have no idea when it was done and the plug is stripped too.
 

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You can look at where the lower intake manifold gasket is, and you should be able to tell if the little part that is visible is aluminum, or plastic.
If you cannot tell you could always use a multimeter set to ohms, and check the small part of the gasket showing for continuity.
If the LIM Gasket has never been changed for the aluminum one, then I'd consider that a top priority.
 
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