i have a 1995 bonneville se model and today i went to the parts store and i was looking for spark plugs, and in the computer it shows ac delco plug #41-601 for the SSE and 41-606 EXC SSE, what are the difference between the two plugs? both the SSE and the SE both have the same engines, would it matter if i go with either one? both are the same price of $1.39 a plug is one plug better than the other?

http://www.acdelco.com/html/pi_plugs_ident.htm

Note the last portion "Numbering"

I've seen that exc thing before. I think some plugs aren't meant for supercharged engines. And there was no SSEi for a few years, just a high optioned SSE with another letter. EDIT: And some places' computers don't say SSEi.

so then it wont matter what plug to use then, either plug would do fine?

On an NA, get a platinum plug THAT IS NOT BOSCH.

how about the ac delco platinums part # 41-940 those are pretty pricey at $5.49 each for a plug and also they have the ac delco iridum plug for $5.99 each whats the difference between the iridum and platinum plug? what would be better to go with? and what should the plug gap be set at?






1995 bonneville se model, 192,000 miles