Topic: S70 GLT spark plugs. So far what i learned is that prices vary alot and plugs might make a difference in driveability. I tried going to napa and they said bosch fr6dc are no longer stocked or sold. Darn! napa did say they had a cross as in ngk so i thought i would try those out. I had to special order and they were $1.89 a plug. Cheaper then eom and i hope just as good.

I have a turbo so i went for the copper rather than plat. plug. The dealer keeps saying dont use a plat. plug.

I drive mostly city so i am changing plugs at nearly 20k miles. I try change them when the tip starts to erode.

I will post my driveability findings when i try these ngk's out. Thanks for all those who posted. You have been a great help!!!

Andrew