let me start off by saying, I'm not expecting any special performance boosts from spark plugs. I am confused why platinum plugs are not good for my m103 engine. I have used the Bosch 4+ plugs in my engine for about 10K miles.( I purchased these plugs before I knew they were bad) they haven't eroded the electrodes or caused any side effects. why are they no good in my engine. if someone could clarify this for me I would be grateful.
01 ML55 AMG
92 500E (a few mods)
87 300E (lots of mods)
00 Chevy 3500HD Diesel Box Truck
68 18' Donzi Marine
06 GT i-Drive7 1.0 Mountain Bike (with GPS!
PREVIOUSLY OWNED:83 300SD, 87 420SEL, 88 420SEL, 90 420SEL, 86 560SEL, 86 190E 2.3-16V AMG, 94 E320