Thread: spark plugs

Originally Posted by SJAndrew

I've run every brand and every type in my car. The only ones I've ever had problems with were Champion copper core plugs.

Not a single problem with Bosch Pt, NGK Ir, NGK Pt, Delco Pt.

Since changing the back ones are such a royal PITA, I would get Pt or Ir.

Back plugs are easy.

The last kind of plug you want is a Platinum in these cars.

Iriduims are for stock cars only.