Which spark plug do you use?

109
3
18
Buick Ownership
1998 Buick Park Avenue
So, I will be doing a tune up on my car eventually and I was just wondering if anyone have issues with certain material spark plugs. For example, my 1999 saturn sw2 I use copper because 1) it burns a lot of oil 2) anything more than copper actually will eat your ignition modules and coils, so I use copper in that. (also super easy to change)

Any concern to using platinum, iridium, etc in our cars?
 

Fcar1953

Junior Member
81
13
8
Pittsburgh Pa
Buick Ownership
14 Lacrosse Premium AWD 15 Enclave Premium
My suggestion would be Iridium. Just put a full set of iridium plugs and GM red performance wires in one of my cars. Our Lacrosse is not ready for plugs. Mine is also a 98 that i just did.
 

Alan 55

Buick Newbie
113
34
28
Florida
Buick Ownership
2001 Buick Park Avenue, previously owned 1997 Park Avenue
In my experience the best spark plug for your vehicle is the OEM plug specified by the manufacturer. I have tried without success using various aftermarket plugs. Some were better than others but none as good as AC Delco.
 
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