I knew that would get your attention. You guys haven't answered my last question so I had to do something. I actually have a question about spark plugs. Is It a bad thing to use platinum plugs? If so I need a good recommendation.
They work just fine with my car and have had them in there for about 8 months. As far as feeling the difference and needing plugs: I had replaced my plugs about 1 month before. The only reason I changed to these is I work in an auto parts store and they gave all of us a free set to do a trial on them. After that I bought a set for my truck and my wifes car. I have been selling them for sometime now and haven't had anybody say they had a problem. Might not be getting any detonation for 2 reasons. 1) I went with a colder plug. 2) My car actually uses a distributor and I have a MSD box on it.
Mustang, it's what's for dinner.
The reason platinum plugs aren't optimum for the Buicks is that half the cylinders fire "backwards". That means that on three cylinders, the tiny center electrode of a Pt plug is the "target", rather than the point which originates the spark. Ford actually used two different plugs on some of the V6 Tauruses with similar "backwards" firing.
The biggest problem I found with Platinum plugs in our cars, is th erosion that takes place on the firing tip...I had a set on my car when I first got it and th etip had eroded so far back into the insulator that I couldn't even see it...Hence two cylinders were firing.......NGK's are dynamite, tremendous results in my car versus others...Just my O2