On my 89 190E I trried the Platinum's but could detect no real difference. What do I use? The Bosch "Copper Core" H9DC gapped @ .40. I think the spec calls for them to be gapped at 0.35 but I've always opened them up just a little....seems to burn somewhat more efficiently. Here in Tucson Autozone is running a special on them for 69 cents each!
89 190E 2.6