5speedz34 Posted October 15, 2007 Report Posted October 15, 2007 I think yes, but eventually probabaly around 98 or something, the newer 3x00's went to platinum plug I'm sure. Quote
19Cutlass94 Posted October 15, 2007 Report Posted October 15, 2007 If your talking about pysical size and thread pitchs and such.. yes they are... now type of plug they are different... they went from copper to platnium to iridium.. Quote
MonteCarloDude Posted October 15, 2007 Report Posted October 15, 2007 I think yes, but eventually probabaly around 98 or something, the newer 3x00's went to platinum plug I'm sure. my 98 takes platinum plugs. Quote
stockgp Posted October 15, 2007 Author Report Posted October 15, 2007 well, i'm looking at ngk iridiums for a monte 3100, juust making sure they'll work. thanks Quote
per0781 Posted October 15, 2007 Report Posted October 15, 2007 why overpay for spark plugs? NGK TR55's all the way. Quote
stockgp Posted October 15, 2007 Author Report Posted October 15, 2007 because i'm getting iridiums for the same price Quote
IRONDOG442 Posted October 15, 2007 Report Posted October 15, 2007 NGKs came stock in the LX-5 engines, FYI ! Quote
1979lee Posted October 15, 2007 Report Posted October 15, 2007 my 98 takes platinum plugs. same here Quote
89SupremeCutty Posted October 17, 2007 Report Posted October 17, 2007 what was the change gm made in 98 to make those engines use platinum? Quote
cutlassdude96 Posted October 17, 2007 Report Posted October 17, 2007 they switch to platinum in 96 Quote
89SupremeCutty Posted October 17, 2007 Report Posted October 17, 2007 well whatever year gm made the switch, why did they do it? Quote
gp90se Posted October 17, 2007 Report Posted October 17, 2007 supposed to last longer between changes (30k vs 100k) and supposedly better mpg, but I don't believe either. Quote
19Cutlass94 Posted October 17, 2007 Report Posted October 17, 2007 Only reason they went from copper to platnium to iridium is because of the change intervals. copper is every 30,000mi platnium is every 50,000mi and iridium is every 100,000mi Or unless you foul a plug first Quote
89SupremeCutty Posted October 17, 2007 Report Posted October 17, 2007 mileage between changing plugs don't matter to me. i usually change the plugs, wires and air filter once a year. the only vehicle i didn't do that to was my crown vic. Quote
19Cutlass94 Posted October 18, 2007 Report Posted October 18, 2007 If you change them that often just stick with the copper plugs as they are the cheapest Quote
89SupremeCutty Posted October 18, 2007 Report Posted October 18, 2007 does the difference in metals make the car run different? like if i went from platinum to copper, would it run better or worse? Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.