I was wondering which barnd of Spark Plug would be best for my Hyundai Santa fe 2002 2.7L v6 car? I see many sites claiming copper plugs are best, platinums are bad etc, etc. Hyundai owners manual suggests platinum though. Some people also say asian cars need some specific brand's plugs. Now I am confused. Seeking the mechanics' advice. Thanks in advanced.
My car has an automatic transmission.
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