Anyone running E3 Diamondfire spark plugs?
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Newbie
Joined: Aug 2008
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From: Upper Michigan
2005 MB C230 K
Anyone running E3 Diamondfire spark plugs?
My 2005 C230K crossed over 50k problem-free miles a short time ago, and I'm going to change out the spark plugs here pretty quick.
My question is - Does anyone run these E3 Diamondfire plugs I keep hearing about? Do they make a difference in fuel mileage or power? They're only $5.99 each for my application so they are not ridiculously expensive - comparable in price to the nicest plug Autozone has for the M271.
On a side note, I've got a bit of a "sputter" I guess you could call it at cold startup for maybe 30 seconds. Although I am running a Magnaflow muffler, 2nd CAT delete and silencer removal on the S/C - so that could be my problem right there. Its not really a big deal, but I thought maybe plugs would solve this. It could have done this all along, but the muffler in the last 5k miles magnified the problem possibly? Anyway I have no idea - thought plugs would be a good start though.
Thanks in advance
My question is - Does anyone run these E3 Diamondfire plugs I keep hearing about? Do they make a difference in fuel mileage or power? They're only $5.99 each for my application so they are not ridiculously expensive - comparable in price to the nicest plug Autozone has for the M271.
On a side note, I've got a bit of a "sputter" I guess you could call it at cold startup for maybe 30 seconds. Although I am running a Magnaflow muffler, 2nd CAT delete and silencer removal on the S/C - so that could be my problem right there. Its not really a big deal, but I thought maybe plugs would solve this. It could have done this all along, but the muffler in the last 5k miles magnified the problem possibly? Anyway I have no idea - thought plugs would be a good start though.
Thanks in advance
