Benzworld.org - Mercedes Benz Discussion Forum - View Single Post - Spark plugs, who's work best, and how about Platinum or Iridium plugs?

MTI · 07-10-2003, 04:25 PM

Bosch coppers have worked fine for me, so I never felt the need to change. They're cheap, easy to gap. My understanding is that the platinum plugs work fine in our cars, but the main selling point on them is that they can stay in longer, which may not be a good thing on older engines with alloy heads. I've heard that the 4 prong'd plugs are a pain to set the gap.

07-10-2003, 04:25 PM	#2 (permalink)
MTI BenzWorld Elite Date registered: Aug 2002 Vehicle: '85 190E 2.3 '85 2.3-16 '99 C280 Location: Honolulu, Hawaii, USA Posts: 2,479	Bosch coppers have worked fine for me, so I never felt the need to change. They're cheap,... Bosch coppers have worked fine for me, so I never felt the need to change. They're cheap, easy to gap. My understanding is that the platinum plugs work fine in our cars, but the main selling point on them is that they can stay in longer, which may not be a good thing on older engines with alloy heads. I've heard that the 4 prong'd plugs are a pain to set the gap.