In article . com>,
says...

>
> > There are only two types of spark plugs I recommend. AC Delco and
> > Autolite both in Double Platinum since this is a "Waste Spark" Ignition
> > System. Some here swear by NGK.
> > Double Platinum plugs should last 80k miles.
> > Non platinum plugs last about 30k tops.
> > (Depends on how often they spark, not how far you drive.)
>
> The Saturns don't like the platinums at all. They seem to last for
> about 5-8K and start to get very fouled due to the waste spark.

Who the hell feed you that crap? Waste spark causes wear to the outer
electrode, not fouling. (Hence why you should buy double platinum over
single platinum.) If you want to argue fouling find another excuse than
"waste spark". Nearly everything GM made with Waste Spark ignition uses
double platinum plugs pre installed from the factory without issue. If
you cant get the plugs I mentioned to last more than 60,000 miles then
you have other issues.