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Discussion Starter · #1 ·
Can anyone recommend which NGK plug I'll need to change out originals in my '99 Trooper? I've misplaced manual. Is there any reason to go with more expensive NGK 's over the NGK copper tip? Thanks.
 

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Discussion Starter · #3 ·
Talk about confusion. I called the dealership to ask what plugs they would replace if they did the service and the parts guy said my '99 came with Champions.

So I go and buy Champion Platinums and have my mechanic put them in.

Guess what was in there as OEM.....not Champion, not NGK, but Denso!

Oh well, the Champions are working fine and I saved about $6 per plug.
 
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