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Discussion Starter · #1 ·
According to the owner's manual, the recommended spark plugs by the manufacturer are
1. Champion platinum RC10PYP4 or
2. NGK platinum PFR5N-11.

I searched on line and called some local stores and they don't have such spark plugs. They recommend different types of spark plugs for '03 gls.
Did they change the types of spark plugs?
 

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Discussion Starter · #9 ·
Basically all spark plugs are made of copper. Only difference is on the tip of the electrode. Platinum and Iridium are precious metal and they cannot sell real iridium or platinum plugs for $10.
 

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I cant remember but im sure its one of those & I know we can you denso & bosch but I wouldnt recommend denso since it looks knock off

KDM_STANCE_XD2
 
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